home *** CD-ROM | disk | FTP | other *** search
open in: 
MacOS 8.1
|
Win98
|
DOS
view JSON data
|
view as text
This file was processed as: ArcFS Archive
(archive/arcFS).
You can browse this item here: risc_pc
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 100%
| dexvert
| ArcFS Archive (archive/arcFS)
| magic
| Supported |
| 100%
| file
| RISC OS archive (ArcFS format)
| default
| |
| 99%
| file
| data
| default
| |
| 100%
| TrID
| Acorn ArcFS Archive
| default
| |
| 100%
| gt2
| Kopftext: 'Archive'
| default (weak)
| |
| 100%
| detectItEasy
| Archive: ArcFS
| default
|
|
hex view+--------+-------------------------+-------------------------+--------+--------+
|00000000| 41 72 63 68 69 76 65 00 | c8 04 00 00 24 06 00 00 |Archive.|....$...|
|00000010| 28 00 00 00 64 00 00 00 | 00 00 00 00 00 00 00 00 |(...d...|........|
|00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000040| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000050| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000060| 82 21 37 2b 5f 57 6f 72 | 6b 00 00 00 ff ff ff ff |.!7+_Wor|k.......|
|00000070| 45 dc fd ff 29 e3 3b ef | 00 00 00 00 ff ff ff ff |E...).;.|........|
|00000080| 68 01 00 80 82 21 42 6f | 6f 74 00 00 00 00 00 00 |h....!Bo|ot......|
|00000090| 42 00 00 00 44 eb ff ff | e3 c6 83 69 33 00 f0 41 |B...D...|...i3..A|
|000000a0| 42 00 00 00 61 4d 00 00 | 82 21 52 55 4e 00 00 00 |B...aM..|.!RUN...|
|000000b0| 00 00 00 00 6a 00 00 00 | 45 eb ff ff 29 b6 90 db |....j...|E...)...|
|000000c0| 33 00 33 da 6a 00 00 00 | c7 4d 00 00 82 21 73 70 |3.3.j...|.M...!sp|
|000000d0| 72 69 74 65 73 00 00 00 | 60 03 00 00 44 f9 ff ff |rites...|`...D...|
|000000e0| 2f 2e 29 5c 33 00 49 5f | 60 03 00 00 55 4e 00 00 |/.)\3.I_|`...UN..|
|000000f0| 82 21 53 70 72 69 74 65 | 73 32 32 00 80 06 00 00 |.!Sprite|s22.....|
|00000100| 44 f9 ff ff df 9b 89 59 | 33 00 c2 c9 80 06 00 00 |D......Y|3.......|
|00000110| d9 51 00 00 82 4f 5f 68 | 65 61 64 66 6f 6f 74 00 |.Q...O_h|eadfoot.|
|00000120| 50 00 00 00 44 ff ff ff | f3 f0 c0 84 33 00 e6 22 |P...D...|....3.."|
|00000130| 50 00 00 00 7d 58 00 00 | 82 57 6f 72 6b 00 00 00 |P...}X..|.Work...|
|00000140| 00 00 00 00 ff ff ff ff | 45 dc fd ff 89 e4 3b ef |........|E.....;.|
|00000150| 00 00 00 00 ff ff ff ff | 44 01 00 80 82 68 65 61 |........|D....hea|
|00000160| 64 66 6f 6f 74 00 00 00 | 51 00 00 00 44 ff ff ff |dfoot...|Q...D...|
|00000170| a0 87 42 e3 03 00 4a b3 | 51 00 00 00 f1 58 00 00 |..B...J.|Q....X..|
|00000180| 00 43 44 5f 49 4e 46 4f | 00 00 00 00 19 4d 00 00 |.CD_INFO|.....M..|
|00000190| 44 ff ff ff a8 51 19 2f | 13 00 d7 c0 19 4d 00 00 |D....Q./|.....M..|
|000001a0| 24 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |$.......|........|
|000001b0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001c0| 00 00 00 00 00 00 00 00 | 82 21 37 50 6c 75 73 00 |........|.!7Plus.|
|000001d0| 00 00 00 00 ff ff ff ff | 45 dc fd ff 1e e5 3b ef |........|E.....;.|
|000001e0| 00 00 00 00 ff ff ff ff | 80 04 00 80 82 21 42 6f |........|.....!Bo|
|000001f0| 6f 74 00 00 00 00 00 00 | 77 00 00 00 44 eb ff ff |ot......|w...D...|
|00000200| 9f f7 1c 7e 03 00 6e 9f | 77 00 00 00 66 59 00 00 |...~..n.|w...fY..|
|00000210| 82 21 43 68 6f 69 63 65 | 73 00 00 00 71 00 00 00 |.!Choice|s...q...|
|00000220| 44 ff ff ff 17 db 26 91 | 33 00 ca 79 71 00 00 00 |D.....&.|3..yq...|
|00000230| 01 5a 00 00 82 21 48 65 | 6c 70 00 00 00 00 00 00 |.Z...!He|lp......|
|00000240| bc 3c 00 00 44 ff ff ff | f4 01 c1 84 03 00 13 f6 |.<..D...|........|
|00000250| bc 3c 00 00 96 5a 00 00 | 82 21 52 75 6e 00 00 00 |.<...Z..|.!Run...|
|00000260| 00 00 00 00 b7 05 00 00 | 45 eb ff ff 6a 89 46 bb |........|E...j.F.|
|00000270| 03 00 0d db b7 05 00 00 | 76 97 00 00 82 21 52 75 |........|v....!Ru|
|00000280| 6e 69 6d 61 67 65 00 00 | ff 63 00 00 44 f8 ff ff |nimage..|.c..D...|
|00000290| 2a 12 27 91 03 00 07 59 | ff 63 00 00 51 9d 00 00 |*.'....Y|.c..Q...|
|000002a0| 82 21 73 70 72 69 74 65 | 73 00 00 00 f8 02 00 00 |.!sprite|s.......|
|000002b0| 44 f9 ff ff 16 48 15 5a | 03 00 51 f3 f8 02 00 00 |D....H.Z|..Q.....|
|000002c0| 74 01 01 00 82 21 73 70 | 72 69 74 65 73 32 32 00 |t....!sp|rites22.|
|000002d0| 58 05 00 00 44 f9 ff ff | 97 5f 15 5a 03 00 6c d3 |X...D...|._.Z..l.|
|000002e0| 58 05 00 00 90 04 01 00 | 82 64 65 66 61 75 6c 74 |X.......|.default|
|000002f0| 00 00 00 00 ff ff ff ff | 45 dc fd ff 11 e8 3b ef |........|E.....;.|
|00000300| 00 00 00 00 ff ff ff ff | 60 03 00 80 82 21 48 65 |........|`....!He|
|00000310| 6c 70 00 4f 00 00 00 00 | 51 04 00 00 44 ff ff ff |lp.O....|Q...D...|
|00000320| 26 dc 2d 5c 03 00 02 49 | 51 04 00 00 0c 0a 01 00 |&.-\...I|Q.......|
|00000330| 82 21 52 75 6e 00 46 4f | 00 00 00 00 b4 00 00 00 |.!Run.FO|........|
|00000340| 44 eb ff ff 83 c2 20 7e | 03 00 0d e2 b4 00 00 00 |D..... ~|........|
|00000350| 81 0e 01 00 82 21 73 70 | 72 69 74 65 73 00 00 00 |.....!sp|rites...|
|00000360| 0c 02 00 00 44 f9 ff ff | 12 bd 60 59 03 00 9b ce |....D...|..`Y....|
|00000370| 0c 02 00 00 59 0f 01 00 | 82 21 73 70 72 69 74 65 |....Y...|.!sprite|
|00000380| 73 32 32 00 4c 03 00 00 | 44 f9 ff ff 5f c0 56 59 |s22.L...|D..._.VY|
|00000390| 03 00 83 52 4c 03 00 00 | 89 11 01 00 00 43 44 5f |...RL...|.....CD_|
|000003a0| 49 4e 46 4f 00 00 00 00 | 19 4d 00 00 44 ff ff ff |INFO....|.M..D...|
|000003b0| a8 51 19 2f 13 00 d7 c0 | 19 4d 00 00 24 00 00 00 |.Q./....|.M..$...|
|000003c0| 82 44 65 73 63 00 00 00 | 00 00 00 00 12 09 00 00 |.Desc...|........|
|000003d0| 44 ff ff ff ba 0c 25 91 | 33 00 ca 19 12 09 00 00 |D.....%.|3.......|
|000003e0| f9 14 01 00 82 46 72 6f | 6e 74 45 6e 64 00 00 00 |.....Fro|ntEnd...|
|000003f0| 0f c5 00 00 43 f8 ff ff | 9a 40 48 1e 13 00 7b 33 |....C...|.@H...{3|
|00000400| 0f c5 00 00 2f 1e 01 00 | 82 4d 65 73 73 61 67 65 |..../...|.Message|
|00000410| 73 00 00 00 0f 0c 00 00 | 43 ff ff ff 80 33 26 1a |s.......|C....3&.|
|00000420| 13 00 76 55 0f 0c 00 00 | 62 e3 01 00 82 73 70 72 |..vU....|b....spr|
|00000430| 69 74 65 73 00 00 00 00 | c0 07 00 00 44 f9 ff ff |ites....|....D...|
|00000440| ba ba 28 5c 03 00 6c 19 | c0 07 00 00 95 ef 01 00 |..(\..l.|........|
|00000450| 82 73 70 72 69 74 65 73 | 32 32 00 00 58 05 00 00 |.sprites|22..X...|
|00000460| 44 f9 ff ff 12 b3 28 5c | 03 00 6c d3 58 05 00 00 |D.....(\|..l.X...|
|00000470| 79 f7 01 00 82 54 61 73 | 6b 00 00 00 00 00 00 00 |y....Tas|k.......|
|00000480| a0 28 00 00 42 fa ff ff | 94 15 6b f3 13 00 a4 0e |.(..B...|..k.....|
|00000490| a0 28 00 00 f5 fc 01 00 | 82 54 65 6d 70 6c 61 74 |.(......|.Templat|
|000004a0| 65 73 00 00 4c 10 00 00 | 44 ec ff ff ac ad 26 91 |es..L...|D.....&.|
|000004b0| 03 00 ef 84 4c 10 00 00 | b9 25 02 00 00 00 00 00 |....L...|.%......|
|000004c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000004e0| 82 43 44 5f 49 4e 46 4f | 00 00 00 00 19 4d 00 00 |.CD_INFO|.....M..|
|000004f0| 44 ff ff ff a8 51 19 2f | 13 00 d7 c0 19 4d 00 00 |D....Q./|.....M..|
|00000500| 24 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |$.......|........|
|00000510| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000520| 00 00 00 00 00 00 00 00 | 20 20 49 66 20 20 79 6f |........| If yo|
|00000530| 75 20 61 72 65 20 6e 6f | 74 20 75 70 20 74 6f 20 |u are no|t up to |
|00000540| 64 61 74 65 20 74 68 65 | 6e 20 63 6f 6e 74 61 63 |date the|n contac|
|00000550| 74 20 79 6f 75 72 20 64 | 72 69 76 65 0a 73 75 70 |t your d|rive.sup|
|00000560| 70 6c 69 65 72 20 74 6f | 20 72 65 63 65 69 76 65 |plier to| receive|
|00000570| 20 61 20 6e 65 77 20 63 | 6f 70 79 2e 0a 0a 56 65 | a new c|opy...Ve|
|00000580| 72 73 69 6f 6e 20 31 2e | 31 3a 20 20 20 53 75 70 |rsion 1.|1: Sup|
|00000590| 70 6f 72 74 65 64 20 72 | 65 61 64 69 6e 67 20 68 |ported r|eading h|
|000005a0| 69 67 68 20 73 69 65 72 | 72 61 20 67 72 6f 75 70 |igh sier|ra group|
|000005b0| 20 66 69 6c 65 73 2e 0a | 56 65 72 73 69 6f 6e 20 | files..|Version |
|000005c0| 32 2e 30 3a 20 20 20 53 | 75 70 70 6f 72 74 65 64 |2.0: S|upported|
|000005d0| 20 20 72 65 61 64 69 6e | 67 20 20 20 68 69 67 68 | readin|g high|
|000005e0| 20 20 73 69 65 72 72 61 | 20 20 20 61 6e 64 20 20 | sierra| and |
|000005f0| 49 53 4f 20 20 39 36 36 | 30 20 20 61 6e 64 0a 20 |ISO 966|0 and. |
|00000600| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 73 75 | | su|
|00000610| 70 70 6f 72 74 65 64 20 | 73 74 61 6e 64 61 72 64 |pported |standard|
|00000620| 20 61 75 64 46 69 6c 65 | 44 61 74 61 82 43 44 5f | audFile|Data.CD_|
|00000630| 49 4e 46 4f 00 00 00 00 | 19 4d 00 00 44 ff ff ff |INFO....|.M..D...|
|00000640| a8 51 19 2f 03 00 d7 c0 | 20 20 20 20 20 20 20 20 |.Q./....| |
|00000650| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 43 6f 6d | | Com|
|00000660| 6d 6f 6e 20 51 75 65 73 | 74 69 6f 6e 73 20 61 6e |mon Ques|tions an|
|00000670| 64 20 41 6e 73 77 65 72 | 73 0a 0a 4d 53 43 44 45 |d Answer|s..MSCDE|
|00000680| 58 0a 0a 4d 53 43 44 45 | 58 20 28 6f 72 20 74 68 |X..MSCDE|X (or th|
|00000690| 65 20 4d 69 63 72 6f 73 | 6f 66 74 20 63 6f 6d 70 |e Micros|oft comp|
|000006a0| 61 63 74 20 64 69 73 63 | 20 65 78 74 65 6e 73 69 |act disc| extensi|
|000006b0| 6f 6e 29 20 73 6f 66 74 | 77 61 72 65 20 73 74 61 |on) soft|ware sta|
|000006c0| 6e 64 61 72 64 69 7a 65 | 73 0a 74 68 65 20 77 61 |ndardize|s.the wa|
|000006d0| 79 20 20 69 6e 20 77 68 | 69 63 68 20 20 61 6c 6c |y in wh|ich all|
|000006e0| 20 43 44 2d 52 4f 4d 20 | 20 64 72 69 76 65 73 20 | CD-ROM | drives |
|000006f0| 61 72 65 20 20 61 63 63 | 65 73 73 65 64 20 62 79 |are acc|essed by|
|00000700| 20 20 61 20 50 43 2e 20 | 20 20 4f 6e 20 69 74 73 | a PC. | On its|
|00000710| 0a 72 65 6c 65 61 73 65 | 20 69 74 20 20 63 6f 75 |.release| it cou|
|00000720| 6c 64 20 6e 6f 74 20 20 | 66 61 69 6c 20 74 6f 20 |ld not |fail to |
|00000730| 20 73 75 63 63 65 65 64 | 20 61 73 20 69 74 20 77 | succeed| as it w|
|00000740| 61 73 20 74 68 65 20 6f | 6e 6c 79 20 69 6e 64 65 |as the o|nly inde|
|00000750| 70 65 6e 64 65 6e 74 0a | 73 6f 66 74 77 61 72 65 |pendent.|software|
|00000760| 20 77 68 69 63 68 20 20 | 61 6c 6c 6f 77 65 64 20 | which |allowed |
|00000770| 74 68 65 20 20 43 44 2d | 52 4f 4d 20 64 69 73 63 |the CD-|ROM disc|
|00000780| 20 20 74 6f 20 61 70 70 | 65 61 72 20 20 61 73 20 | to app|ear as |
|00000790| 6f 6e 65 20 62 69 67 20 | 66 6c 6f 70 70 79 0a 64 |one big |floppy.d|
|000007a0| 69 73 63 20 74 6f 20 20 | 74 68 65 20 65 6e 64 20 |isc to |the end |
|000007b0| 20 75 73 65 72 2e 20 20 | 20 54 68 65 20 66 6f 6c | user. | The fol|
|000007c0| 6c 6f 77 69 6e 67 20 20 | 76 65 72 73 69 6f 6e 73 |lowing |versions|
|000007d0| 20 61 72 65 20 20 6c 69 | 6b 65 6c 79 20 74 6f 20 | are li|kely to |
|000007e0| 62 65 20 69 6e 0a 65 78 | 69 73 74 65 6e 63 65 2c |be in.ex|istence,|
|000007f0| 20 73 74 69 6c 6c 2e 20 | 20 20 49 66 20 20 79 6f | still. | If yo|
|00000800| 75 20 61 72 65 20 6e 6f | 74 20 75 70 20 74 6f 20 |u are no|t up to |
|00000810| 64 61 74 65 20 74 68 65 | 6e 20 63 6f 6e 74 61 63 |date the|n contac|
|00000820| 74 20 79 6f 75 72 20 64 | 72 69 76 65 0a 73 75 70 |t your d|rive.sup|
|00000830| 70 6c 69 65 72 20 74 6f | 20 72 65 63 65 69 76 65 |plier to| receive|
|00000840| 20 61 20 6e 65 77 20 63 | 6f 70 79 2e 0a 0a 56 65 | a new c|opy...Ve|
|00000850| 72 73 69 6f 6e 20 31 2e | 31 3a 20 20 20 53 75 70 |rsion 1.|1: Sup|
|00000860| 70 6f 72 74 65 64 20 72 | 65 61 64 69 6e 67 20 68 |ported r|eading h|
|00000870| 69 67 68 20 73 69 65 72 | 72 61 20 67 72 6f 75 70 |igh sier|ra group|
|00000880| 20 66 69 6c 65 73 2e 0a | 56 65 72 73 69 6f 6e 20 | files..|Version |
|00000890| 32 2e 30 3a 20 20 20 53 | 75 70 70 6f 72 74 65 64 |2.0: S|upported|
|000008a0| 20 20 72 65 61 64 69 6e | 67 20 20 20 68 69 67 68 | readin|g high|
|000008b0| 20 20 73 69 65 72 72 61 | 20 20 20 61 6e 64 20 20 | sierra| and |
|000008c0| 49 53 4f 20 20 39 36 36 | 30 20 20 61 6e 64 0a 20 |ISO 966|0 and. |
|000008d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 73 75 | | su|
|000008e0| 70 70 6f 72 74 65 64 20 | 73 74 61 6e 64 61 72 64 |pported |standard|
|000008f0| 20 61 75 64 69 6f 20 66 | 75 6e 63 74 69 6f 6e 73 | audio f|unctions|
|00000900| 0a 56 65 72 73 69 6f 6e | 20 32 2e 31 3a 20 20 20 |.Version| 2.1: |
|00000910| 53 75 70 70 6f 72 74 20 | 66 6f 72 20 20 69 6e 74 |Support |for int|
|00000920| 65 72 6c 65 61 76 65 64 | 20 41 75 64 69 6f 20 69 |erleaved| Audio i|
|00000930| 6e 20 43 44 2d 52 4f 4d | 20 58 41 2c 20 63 6f 6d |n CD-ROM| XA, com|
|00000940| 70 61 74 69 62 6c 65 0a | 20 20 20 20 20 20 20 20 |patible.| |
|00000950| 20 20 20 20 20 20 20 77 | 69 74 68 20 4d 53 2d 44 | w|ith MS-D|
|00000960| 4f 53 20 34 2e 30 20 61 | 6e 64 20 4d 53 2d 4e 45 |OS 4.0 a|nd MS-NE|
|00000970| 54 20 63 6f 6d 70 61 74 | 69 62 6c 65 2e 0a 56 65 |T compat|ible..Ve|
|00000980| 72 73 69 6f 6e 20 32 2e | 32 3a 20 20 20 53 75 70 |rsion 2.|2: Sup|
|00000990| 70 6f 72 74 73 20 4d 53 | 2d 44 4f 53 20 76 65 72 |ports MS|-DOS ver|
|000009a0| 73 69 6f 6e 20 35 2e 30 | 2e 0a 0a 48 69 67 68 20 |sion 5.0|...High |
|000009b0| 53 69 65 72 72 61 20 28 | 48 53 47 29 20 61 6e 64 |Sierra (|HSG) and|
|000009c0| 20 49 53 4f 20 39 36 36 | 30 20 66 6f 72 6d 61 74 | ISO 966|0 format|
|000009d0| 73 0a 0a 54 68 65 20 48 | 69 67 68 20 53 69 65 72 |s..The H|igh Sier|
|000009e0| 72 61 20 47 72 6f 75 70 | 20 28 48 53 47 29 20 73 |ra Group| (HSG) s|
|000009f0| 74 61 6e 64 61 72 64 20 | 77 61 73 20 74 68 65 20 |tandard |was the |
|00000a00| 66 69 72 73 74 20 61 74 | 74 65 6d 70 74 20 74 6f |first at|tempt to|
|00000a10| 20 6c 61 79 20 64 6f 77 | 6e 0a 61 20 66 6f 72 6d | lay dow|n.a form|
|00000a20| 61 74 74 69 6e 67 20 20 | 73 74 72 75 63 74 75 72 |atting |structur|
|00000a30| 65 20 66 6f 72 20 20 61 | 20 43 44 2d 52 4f 4d 20 |e for a| CD-ROM |
|00000a40| 20 28 6d 75 63 68 20 20 | 6c 69 6b 65 20 20 74 68 | (much |like th|
|00000a50| 65 20 20 31 2e 34 20 20 | 4d 65 67 61 62 79 74 65 |e 1.4 |Megabyte|
|00000a60| 0a 66 6f 72 6d 61 74 74 | 69 6e 67 20 73 74 61 6e |.formatt|ing stan|
|00000a70| 64 61 72 64 20 20 66 6f | 72 20 20 50 43 20 20 66 |dard fo|r PC f|
|00000a80| 6c 6f 70 70 79 20 20 64 | 69 73 6b 73 29 2e 20 20 |loppy d|isks). |
|00000a90| 20 20 49 74 73 20 20 72 | 65 6c 65 61 73 65 20 20 | Its r|elease |
|00000aa0| 61 6c 6c 6f 77 65 64 0a | 64 69 66 66 65 72 65 6e |allowed.|differen|
|00000ab0| 74 20 64 65 76 65 6c 6f | 70 65 72 73 20 20 6f 66 |t develo|pers of|
|00000ac0| 20 43 44 20 70 72 6f 64 | 75 63 74 73 20 74 6f 20 | CD prod|ucts to |
|00000ad0| 65 6e 73 75 72 65 20 74 | 68 61 74 20 61 20 77 69 |ensure t|hat a wi|
|00000ae0| 64 65 20 61 73 20 70 6f | 73 73 69 62 6c 65 0a 72 |de as po|ssible.r|
|00000af0| 61 6e 67 65 20 6f 66 20 | 63 6f 6d 70 75 74 65 72 |ange of |computer|
|00000b00| 20 75 73 65 72 73 20 63 | 6f 75 6c 64 20 72 65 61 | users c|ould rea|
|00000b10| 64 20 74 68 65 69 72 20 | 43 44 73 2e 0a 0a 4c 61 |d their |CDs...La|
|00000b20| 74 65 72 2c 20 61 20 20 | 66 65 77 20 73 6d 61 6c |ter, a |few smal|
|00000b30| 6c 20 20 63 68 61 6e 67 | 65 73 20 77 65 72 65 20 |l chang|es were |
|00000b40| 20 6d 61 64 65 20 66 6f | 72 20 74 68 65 20 73 61 | made fo|r the sa|
|00000b50| 6b 65 20 6f 66 20 65 66 | 66 69 63 69 65 6e 63 79 |ke of ef|ficiency|
|00000b60| 20 61 6e 64 0a 63 6f 6d | 70 75 74 65 72 20 63 6f | and.com|puter co|
|00000b70| 6d 70 61 74 69 62 69 6c | 69 74 79 20 61 6e 64 20 |mpatibil|ity and |
|00000b80| 74 68 65 20 49 53 4f 20 | 39 36 36 30 20 73 74 61 |the ISO |9660 sta|
|00000b90| 6e 64 61 72 64 20 77 61 | 73 20 62 6f 72 6e 2e 0a |ndard wa|s born..|
|00000ba0| 0a 49 53 4f 20 39 36 36 | 30 20 20 61 63 63 65 73 |.ISO 966|0 acces|
|00000bb0| 73 20 73 6f 66 74 77 61 | 72 65 20 28 6f 72 20 64 |s softwa|re (or d|
|00000bc0| 72 69 76 65 72 73 20 61 | 73 20 74 68 65 79 20 61 |rivers a|s they a|
|00000bd0| 72 65 20 6b 6e 6f 77 6e | 29 20 61 72 65 20 61 76 |re known|) are av|
|00000be0| 61 69 6c 61 62 6c 65 0a | 66 6f 72 20 70 72 61 63 |ailable.|for prac|
|00000bf0| 74 69 63 61 6c 6c 79 20 | 20 65 76 65 72 79 20 63 |tically | every c|
|00000c00| 6f 6d 70 75 74 65 72 20 | 20 70 6c 61 74 66 6f 72 |omputer | platfor|
|00000c10| 6d 20 2d 20 20 6d 61 6b | 69 6e 67 20 20 43 44 2d |m - mak|ing CD-|
|00000c20| 52 4f 4d 20 20 74 68 65 | 20 20 6d 6f 73 74 0a 70 |ROM the| most.p|
|00000c30| 6c 61 74 66 6f 72 6d 2d | 69 6e 64 65 70 65 6e 64 |latform-|independ|
|00000c40| 65 6e 74 20 6d 65 64 69 | 75 6d 20 65 76 65 72 20 |ent medi|um ever |
|00000c50| 74 6f 20 65 78 69 73 74 | 2e 0a 0a 41 6e 20 49 53 |to exist|...An IS|
|00000c60| 4f 20 20 39 36 36 30 20 | 66 6f 72 6d 61 74 74 65 |O 9660 |formatte|
|00000c70| 64 20 20 64 69 73 63 20 | 63 61 6e 20 20 62 65 20 |d disc |can be |
|00000c80| 70 75 74 20 20 69 6e 74 | 6f 20 61 20 20 50 43 20 |put int|o a PC |
|00000c90| 6d 61 63 68 69 6e 65 20 | 61 6e 64 20 61 20 44 49 |machine |and a DI|
|00000ca0| 52 0a 63 6f 6d 6d 61 6e | 64 20 70 65 72 66 6f 72 |R.comman|d perfor|
|00000cb0| 6d 65 64 2e 20 20 20 49 | 6e 20 61 6e 20 41 70 70 |med. I|n an App|
|00000cc0| 6c 65 20 6d 61 63 68 69 | 6e 65 20 61 20 64 65 73 |le machi|ne a des|
|00000cd0| 6b 74 6f 70 20 63 61 6e | 20 62 65 20 6f 70 65 6e |ktop can| be open|
|00000ce0| 65 64 2c 20 6f 6e 20 61 | 0a 53 75 6e 20 55 4e 49 |ed, on a|.Sun UNI|
|00000cf0| 58 20 73 79 73 74 65 6d | 20 61 20 66 69 6c 65 20 |X system| a file |
|00000d00| 6c 69 73 74 20 6f 70 65 | 72 61 74 69 6f 6e 20 63 |list ope|ration c|
|00000d10| 61 6e 20 62 65 20 70 65 | 72 66 6f 72 6d 65 64 2e |an be pe|rformed.|
|00000d20| 0a 0a 4d 6f 73 74 20 50 | 43 2d 6f 72 69 65 6e 74 |..Most P|C-orient|
|00000d30| 61 74 65 64 20 43 44 2d | 52 4f 4d 20 64 69 73 63 |ated CD-|ROM disc|
|00000d40| 73 20 61 72 65 20 49 53 | 4f 20 39 36 36 30 20 74 |s are IS|O 9660 t|
|00000d50| 68 65 73 65 20 64 61 79 | 73 2e 0a 0a 0a 0a 48 46 |hese day|s.....HF|
|00000d60| 53 20 61 6e 64 20 6f 74 | 68 65 72 20 70 72 6f 70 |S and ot|her prop|
|00000d70| 72 69 65 74 61 72 79 20 | 66 6f 72 6d 61 74 73 0a |rietary |formats.|
|00000d80| 0a 41 20 66 65 77 20 20 | 69 6e 61 64 65 71 75 61 |.A few |inadequa|
|00000d90| 63 69 65 73 20 69 6e 20 | 20 74 68 65 20 49 53 4f |cies in | the ISO|
|00000da0| 20 20 39 36 36 30 20 66 | 6f 72 6d 61 74 20 64 6f | 9660 f|ormat do|
|00000db0| 20 65 78 69 73 74 2e 20 | 20 46 69 6c 65 20 6e 61 | exist. | File na|
|00000dc0| 6d 65 73 20 63 61 6e 0a | 6f 6e 6c 79 20 63 6f 6e |mes can.|only con|
|00000dd0| 73 69 73 74 20 6f 66 20 | 63 68 61 72 61 63 74 65 |sist of |characte|
|00000de0| 72 73 20 41 20 74 6f 20 | 5a 20 61 6e 64 20 75 6e |rs A to |Z and un|
|00000df0| 64 65 72 73 63 6f 72 65 | 2e 20 20 41 20 64 6f 74 |derscore|. A dot|
|00000e00| 20 69 73 20 61 6c 6c 6f | 77 65 64 20 61 73 0a 61 | is allo|wed as.a|
|00000e10| 20 20 6e 61 6d 65 2f 65 | 78 74 65 6e 73 69 6f 6e | name/e|xtension|
|00000e20| 20 20 20 73 65 70 61 72 | 61 74 6f 72 2e 20 20 20 | separ|ator. |
|00000e30| 20 20 4e 6f 20 20 61 6c | 6c 6f 77 61 6e 63 65 20 | No al|lowance |
|00000e40| 20 69 73 20 20 6d 61 64 | 65 20 20 66 6f 72 20 20 | is mad|e for |
|00000e50| 6f 74 68 65 72 0a 63 68 | 61 72 61 63 74 65 72 73 |other.ch|aracters|
|00000e60| 2c 20 69 6e 63 6c 75 64 | 69 6e 67 20 73 70 61 63 |, includ|ing spac|
|00000e70| 65 73 2c 20 6c 6f 77 65 | 72 20 63 61 73 65 20 6c |es, lowe|r case l|
|00000e80| 65 74 74 65 72 73 20 6f | 72 20 6e 61 6d 65 73 20 |etters o|r names |
|00000e90| 67 72 65 61 74 65 72 20 | 74 68 61 6e 0a 65 69 67 |greater |than.eig|
|00000ea0| 68 74 20 20 63 68 61 72 | 61 63 74 65 72 73 2e 20 |ht char|acters. |
|00000eb0| 20 20 20 20 45 76 65 6e | 20 20 20 77 6f 72 73 65 | Even| worse|
|00000ec0| 2c 20 20 74 68 65 20 20 | 73 74 61 6e 64 61 72 64 |, the |standard|
|00000ed0| 20 20 64 6f 65 73 20 20 | 6e 6f 74 20 20 65 61 73 | does |not eas|
|00000ee0| 69 6c 79 0a 61 63 63 6f | 6d 6d 6f 64 61 74 65 20 |ily.acco|mmodate |
|00000ef0| 66 69 6c 65 20 20 72 65 | 73 6f 75 72 63 65 73 2e |file re|sources.|
|00000f00| 20 20 54 68 69 73 20 6f | 66 20 63 6f 75 72 73 65 | This o|f course|
|00000f10| 20 64 6f 65 73 20 6e 6f | 74 20 67 6f 20 64 6f 77 | does no|t go dow|
|00000f20| 6e 20 74 6f 6f 20 77 65 | 6c 6c 0a 69 6e 20 74 68 |n too we|ll.in th|
|00000f30| 65 20 41 70 70 6c 65 20 | 77 6f 72 6c 64 20 2d 20 |e Apple |world - |
|00000f40| 66 6f 72 20 6f 6e 65 20 | 74 68 69 6e 67 20 79 6f |for one |thing yo|
|00000f50| 75 20 6c 6f 6f 73 65 20 | 74 68 65 20 70 72 65 74 |u loose |the pret|
|00000f60| 74 79 20 69 63 6f 6e 73 | 20 77 69 74 68 20 49 53 |ty icons| with IS|
|00000f70| 4f 0a 39 36 36 30 20 66 | 6f 72 6d 61 74 2e 0a 0a |O.9660 f|ormat...|
|00000f80| 41 73 20 20 61 6e 20 20 | 20 61 6c 74 65 72 6e 61 |As an | alterna|
|00000f90| 74 69 76 65 20 20 74 68 | 65 20 20 20 41 70 70 6c |tive th|e Appl|
|00000fa0| 65 20 20 73 79 73 74 65 | 6d 73 20 20 20 63 61 6e |e syste|ms can|
|00000fb0| 20 20 63 6f 70 65 20 20 | 77 69 74 68 20 20 74 68 | cope |with th|
|00000fc0| 65 20 20 48 46 53 0a 28 | 68 69 65 72 61 72 63 68 |e HFS.(|hierarch|
|00000fd0| 69 63 61 6c 20 66 69 6c | 65 20 20 73 79 73 74 65 |ical fil|e syste|
|00000fe0| 6d 29 20 66 6f 72 6d 61 | 74 2e 20 20 20 54 68 69 |m) forma|t. Thi|
|00000ff0| 73 20 20 69 73 2c 20 20 | 62 61 73 69 63 61 6c 6c |s is, |basicall|
|00001000| 79 2c 20 20 61 20 20 64 | 69 72 65 63 74 0a 73 65 |y, a d|irect.se|
|00001010| 63 74 6f 72 20 66 6f 72 | 20 20 73 65 63 74 6f 72 |ctor for| sector|
|00001020| 20 63 6f 70 79 20 20 6f | 66 20 61 6e 20 20 41 70 | copy o|f an Ap|
|00001030| 70 6c 65 20 73 79 73 74 | 65 6d 20 68 61 72 64 20 |ple syst|em hard |
|00001040| 64 69 73 6b 20 61 6e 64 | 20 69 73 20 74 68 65 20 |disk and| is the |
|00001050| 6d 6f 73 74 0a 63 6f 6d | 6d 6f 6e 20 66 6f 72 6d |most.com|mon form|
|00001060| 61 74 20 75 73 65 64 20 | 69 6e 20 74 68 65 20 41 |at used |in the A|
|00001070| 70 70 6c 65 20 77 6f 72 | 6c 64 2e 20 20 4d 6f 72 |pple wor|ld. Mor|
|00001080| 65 20 72 65 63 65 6e 74 | 6c 79 20 61 20 73 69 6d |e recent|ly a sim|
|00001090| 69 6c 61 72 20 73 79 73 | 74 65 6d 0a 68 61 73 20 |ilar sys|tem.has |
|000010a0| 62 65 65 6e 20 20 75 73 | 65 64 20 69 6e 20 20 74 |been us|ed in t|
|000010b0| 68 65 20 53 75 6e 2f 55 | 6e 69 78 20 20 77 6f 72 |he Sun/U|nix wor|
|000010c0| 6c 64 2e 20 20 20 56 41 | 58 20 56 4d 53 20 20 73 |ld. VA|X VMS s|
|000010d0| 79 73 74 65 6d 73 20 61 | 6c 73 6f 20 20 75 73 65 |ystems a|lso use|
|000010e0| 20 61 0a 64 65 76 69 63 | 65 20 66 6f 72 6d 61 74 | a.devic|e format|
|000010f0| 20 73 79 73 74 65 6d 2e | 0a 0a 4e 69 6d 62 75 73 | system.|..Nimbus|
|00001100| 20 49 6e 66 6f 72 6d 61 | 74 69 6f 6e 20 20 53 79 | Informa|tion Sy|
|00001110| 73 74 65 6d 73 20 63 61 | 6e 20 6d 61 6e 75 66 61 |stems ca|n manufa|
|00001120| 63 74 75 72 65 20 43 44 | 2d 52 4f 4d 20 64 69 73 |cture CD|-ROM dis|
|00001130| 63 73 20 77 69 74 68 20 | 62 6f 74 68 20 49 53 4f |cs with |both ISO|
|00001140| 0a 39 36 36 30 20 61 6e | 64 20 41 70 70 6c 65 20 |.9660 an|d Apple |
|00001150| 48 46 53 20 69 6d 61 67 | 65 73 20 6f 6e 20 74 68 |HFS imag|es on th|
|00001160| 65 20 73 61 6d 65 20 64 | 69 73 63 2c 20 6b 65 65 |e same d|isc, kee|
|00001170| 70 69 6e 67 20 62 6f 74 | 68 20 63 61 6d 70 73 20 |ping bot|h camps |
|00001180| 68 61 70 70 79 2e 0a 0a | 52 6f 63 6b 2d 52 69 64 |happy...|Rock-Rid|
|00001190| 67 65 0a 0a 54 6f 20 67 | 65 74 20 61 72 6f 75 6e |ge..To g|et aroun|
|000011a0| 64 20 74 68 69 73 20 70 | 72 6f 62 6c 65 6d 20 6f |d this p|roblem o|
|000011b0| 66 20 6d 75 6c 74 69 70 | 6c 65 20 73 74 61 6e 64 |f multip|le stand|
|000011c0| 61 72 64 73 20 74 68 65 | 20 52 6f 63 6b 2d 52 69 |ards the| Rock-Ri|
|000011d0| 64 67 65 20 66 6f 72 6d | 61 74 0a 69 73 20 61 20 |dge form|at.is a |
|000011e0| 20 66 6f 72 6d 20 6f 66 | 20 49 53 4f 2b 2e 20 20 | form of| ISO+. |
|000011f0| 57 68 69 6c 73 74 20 62 | 65 69 6e 67 20 76 65 72 |Whilst b|eing ver|
|00001200| 79 20 73 69 6d 69 6c 61 | 72 20 69 74 20 61 6c 6c |y simila|r it all|
|00001210| 6f 77 73 20 65 78 74 65 | 6e 64 65 64 20 6e 61 6d |ows exte|nded nam|
|00001220| 65 0a 63 68 61 72 61 63 | 74 65 72 73 20 28 6d 75 |e.charac|ters (mu|
|00001230| 63 68 20 20 6c 69 6b 65 | 20 74 68 65 20 20 43 6f |ch like| the Co|
|00001240| 6d 6d 6f 64 6f 72 65 2f | 43 44 54 56 20 76 65 72 |mmodore/|CDTV ver|
|00001250| 73 69 6f 6e 20 20 6f 66 | 20 49 53 4f 29 20 20 61 |sion of| ISO) a|
|00001260| 6e 64 20 20 66 69 6c 65 | 0a 72 65 73 6f 75 72 63 |nd file|.resourc|
|00001270| 65 73 2e 20 20 20 49 74 | 20 61 6c 73 6f 20 20 63 |es. It| also c|
|00001280| 6f 70 65 73 20 77 69 74 | 68 20 20 6d 69 78 65 64 |opes wit|h mixed|
|00001290| 20 6d 6f 64 65 20 61 6e | 64 20 66 6f 72 6d 20 64 | mode an|d form d|
|000012a0| 69 73 63 20 66 6f 72 6d | 61 74 73 20 66 6f 72 0a |isc form|ats for.|
|000012b0| 74 68 65 20 58 41 2c 20 | 43 44 2d 49 20 61 6e 64 |the XA, |CD-I and|
|000012c0| 20 42 72 69 64 67 65 20 | 73 74 61 6e 64 61 72 64 | Bridge |standard|
|000012d0| 73 2e 0a 0a 48 6f 77 20 | 42 69 67 20 69 73 20 61 |s...How |Big is a|
|000012e0| 20 43 44 2d 52 4f 4d 3f | 0a 0a 4e 65 77 20 70 65 | CD-ROM?|..New pe|
|000012f0| 6f 70 6c 65 20 20 74 6f | 20 74 68 65 20 20 77 6f |ople to| the wo|
|00001300| 72 6c 64 20 6f 66 20 43 | 44 20 61 72 65 20 6f 66 |rld of C|D are of|
|00001310| 74 65 6e 20 63 6f 6e 66 | 75 73 65 64 20 62 79 20 |ten conf|used by |
|00001320| 74 68 65 20 6e 75 6d 65 | 72 6f 75 73 20 61 6e 64 |the nume|rous and|
|00001330| 0a 76 61 72 79 69 6e 67 | 20 71 75 6f 74 61 74 69 |.varying| quotati|
|00001340| 6f 6e 73 20 20 66 6f 72 | 20 74 68 65 20 20 63 61 |ons for| the ca|
|00001350| 70 61 63 69 74 79 20 6f | 66 20 61 20 43 44 2d 52 |pacity o|f a CD-R|
|00001360| 4f 4d 2e 20 20 54 68 69 | 73 20 69 73 20 6d 6f 73 |OM. Thi|s is mos|
|00001370| 74 6c 79 20 64 75 65 0a | 74 6f 20 74 68 65 20 20 |tly due.|to the |
|00001380| 66 61 63 74 20 74 68 61 | 74 20 20 43 44 20 69 73 |fact tha|t CD is|
|00001390| 20 61 20 74 69 6d 65 20 | 64 6f 6d 61 69 6e 20 6d | a time |domain m|
|000013a0| 65 64 69 75 6d 2c 20 73 | 69 7a 65 20 72 65 6c 61 |edium, s|ize rela|
|000013b0| 74 65 73 20 74 6f 20 6c | 65 6e 67 74 68 2e 0a 4e |tes to l|ength..N|
|000013c0| 69 6d 62 75 73 20 68 61 | 73 20 74 68 65 20 77 6f |imbus ha|s the wo|
|000013d0| 72 6c 64 27 73 20 6d 6f | 73 74 20 61 63 63 75 72 |rld's mo|st accur|
|000013e0| 61 74 65 20 6d 61 73 74 | 65 72 69 6e 67 20 6c 61 |ate mast|ering la|
|000013f0| 74 68 65 20 61 6e 64 20 | 63 61 6e 20 63 75 74 20 |the and |can cut |
|00001400| 64 69 73 63 73 0a 75 70 | 20 74 6f 20 20 37 39 20 |discs.up| to 79 |
|00001410| 6d 69 6e 75 74 65 73 20 | 20 33 35 20 20 73 65 63 |minutes | 35 sec|
|00001420| 6f 6e 64 73 20 20 6c 6f | 6e 67 2e 20 20 20 20 41 |onds lo|ng. A|
|00001430| 6c 6c 6f 77 69 6e 67 20 | 20 73 6f 6d 65 20 20 6f |llowing | some o|
|00001440| 76 65 72 68 65 61 64 20 | 20 66 6f 72 0a 64 69 72 |verhead | for.dir|
|00001450| 65 63 74 6f 72 79 20 73 | 74 72 75 63 74 75 72 65 |ectory s|tructure|
|00001460| 73 2c 20 20 70 61 74 68 | 20 74 61 62 6c 65 73 2c |s, path| tables,|
|00001470| 20 20 73 79 73 74 65 6d | 20 61 72 65 61 73 20 20 | system| areas |
|00001480| 61 6e 64 20 61 20 20 6c | 69 74 74 6c 65 20 20 6d |and a l|ittle m|
|00001490| 6f 72 65 0a 62 65 73 69 | 64 65 73 2c 20 6c 65 74 |ore.besi|des, let|
|000014a0| 27 73 20 77 6f 72 6b 20 | 6f 6e 20 37 39 20 6d 69 |'s work |on 79 mi|
|000014b0| 6e 75 74 65 73 2e 20 20 | 54 68 65 20 43 44 2d 52 |nutes. |The CD-R|
|000014c0| 4f 4d 20 63 61 70 61 63 | 69 74 79 20 69 73 20 74 |OM capac|ity is t|
|000014d0| 68 65 72 65 66 6f 72 65 | 3a 0a 0a 0a 20 20 20 20 |herefore|:... |
|000014e0| 20 20 20 20 20 20 20 37 | 39 20 6d 69 6e 75 74 65 | 7|9 minute|
|000014f0| 73 20 78 20 36 30 20 73 | 65 63 6f 6e 64 73 20 78 |s x 60 s|econds x|
|00001500| 20 37 35 20 62 6c 6f 63 | 6b 73 20 78 20 32 2c 30 | 75 bloc|ks x 2,0|
|00001510| 34 38 20 62 79 74 65 73 | 0a 0a 6f 72 20 20 20 20 |48 bytes|..or |
|00001520| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 37 32 | | 72|
|00001530| 38 2c 30 36 34 2c 30 30 | 30 20 62 79 74 65 73 0a |8,064,00|0 bytes.|
|00001540| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00001550| 20 3d 20 20 20 20 20 20 | 37 31 31 2c 30 30 30 20 | = |711,000 |
|00001560| 6b 69 6c 6f 62 79 74 65 | 73 0a 20 20 20 20 20 20 |kilobyte|s. |
|00001570| 20 20 20 20 20 20 20 20 | 20 20 20 3d 20 20 20 20 | | = |
|00001580| 20 20 20 20 20 20 36 39 | 34 20 6d 65 67 61 62 79 | 69|4 megaby|
|00001590| 74 65 73 0a 0a 4c 65 74 | 20 74 68 61 74 20 62 65 |tes..Let| that be|
|000015a0| 20 69 74 20 6f 6e 63 65 | 20 61 6e 64 20 66 6f 72 | it once| and for|
|000015b0| 20 61 6c 6c 21 0a 0a 0a | 42 6c 6f 63 6b 69 6e 67 | all!...|Blocking|
|000015c0| 20 66 61 63 74 6f 72 73 | 20 61 6e 64 20 65 66 66 | factors| and eff|
|000015d0| 69 63 69 65 6e 63 79 0a | 0a 48 61 76 69 6e 67 20 |iciency.|.Having |
|000015e0| 73 61 69 64 20 20 74 68 | 61 74 20 74 68 65 20 20 |said th|at the |
|000015f0| 63 61 70 61 63 69 74 79 | 20 6f 66 20 61 20 43 44 |capacity| of a CD|
|00001600| 2d 52 4f 4d 20 69 73 20 | 36 39 34 20 6d 65 67 61 |-ROM is |694 mega|
|00001610| 62 79 74 65 73 20 69 74 | 20 6d 61 79 20 62 65 0a |bytes it| may be.|
|00001620| 6c 65 73 73 2e 20 20 20 | 54 68 69 73 20 69 73 20 |less. |This is |
|00001630| 64 75 65 20 74 6f 20 74 | 68 65 20 62 6c 6f 63 6b |due to t|he block|
|00001640| 69 6e 67 20 73 74 72 75 | 63 74 75 72 65 20 6f 66 |ing stru|cture of|
|00001650| 20 74 68 65 20 64 69 73 | 63 2e 20 20 41 73 20 6f | the dis|c. As o|
|00001660| 6e 20 79 6f 75 72 0a 68 | 61 72 64 20 64 69 73 6b |n your.h|ard disk|
|00001670| 2c 20 20 74 68 65 20 73 | 6d 61 6c 6c 65 73 74 20 |, the s|mallest |
|00001680| 20 70 61 72 74 20 6f 66 | 20 20 74 68 65 20 64 69 | part of| the di|
|00001690| 73 6b 20 20 74 68 61 74 | 20 63 61 6e 20 62 65 20 |sk that| can be |
|000016a0| 61 63 63 65 73 73 65 64 | 20 69 73 20 61 0a 73 65 |accessed| is a.se|
|000016b0| 63 74 6f 72 2e 20 20 20 | 41 20 6f 6e 65 20 20 62 |ctor. |A one b|
|000016c0| 79 74 65 20 66 69 6c 65 | 20 6f 6e 20 79 6f 75 72 |yte file| on your|
|000016d0| 20 68 61 72 64 20 64 69 | 73 6b 20 77 69 6c 6c 20 | hard di|sk will |
|000016e0| 74 61 6b 65 20 75 70 20 | 35 31 32 20 62 79 74 65 |take up |512 byte|
|000016f0| 73 20 6f 66 0a 73 74 6f | 72 61 67 65 2e 20 20 20 |s of.sto|rage. |
|00001700| 41 20 6f 6e 65 20 20 62 | 79 74 65 20 66 69 6c 65 |A one b|yte file|
|00001710| 20 20 6f 6e 20 61 20 43 | 44 2d 52 4f 4d 20 77 69 | on a C|D-ROM wi|
|00001720| 6c 6c 20 63 6f 6e 73 75 | 6d 65 20 32 2c 30 34 38 |ll consu|me 2,048|
|00001730| 20 62 79 74 65 73 20 28 | 74 68 65 0a 73 65 63 74 | bytes (|the.sect|
|00001740| 6f 72 20 73 69 7a 65 20 | 20 6f 72 20 62 6c 6f 63 |or size | or bloc|
|00001750| 6b 29 2e 20 20 54 68 75 | 73 20 69 66 20 79 6f 75 |k). Thu|s if you|
|00001760| 20 68 61 76 65 20 31 2c | 30 30 30 2c 30 30 30 20 | have 1,|000,000 |
|00001770| 6f 6e 65 20 62 79 74 65 | 20 66 69 6c 65 73 20 79 |one byte| files y|
|00001780| 6f 75 0a 77 69 6c 6c 20 | 6e 6f 74 20 20 67 65 74 |ou.will |not get|
|00001790| 20 74 68 65 6d 20 6f 6e | 74 6f 20 61 20 43 44 2d | them on|to a CD-|
|000017a0| 52 4f 4d 20 65 76 65 6e | 20 74 68 6f 75 67 68 20 |ROM even| though |
|000017b0| 74 68 65 79 20 6f 6e 6c | 79 20 74 6f 74 61 6c 20 |they onl|y total |
|000017c0| 6c 65 73 73 20 74 68 61 | 6e 0a 6f 6e 65 20 6d 65 |less tha|n.one me|
|000017d0| 67 61 62 79 74 65 21 20 | 20 20 46 6f 72 20 74 68 |gabyte! | For th|
|000017e0| 69 73 20 72 65 61 73 6f | 6e 2c 20 65 66 66 69 63 |is reaso|n, effic|
|000017f0| 69 65 6e 74 20 43 44 2d | 52 4f 4d 73 20 68 61 76 |ient CD-|ROMs hav|
|00001800| 65 20 61 20 73 6d 61 6c | 6c 20 6e 75 6d 62 65 72 |e a smal|l number|
|00001810| 0a 6f 66 20 76 65 72 79 | 20 6c 61 72 67 65 20 66 |.of very| large f|
|00001820| 69 6c 65 73 20 69 6e 73 | 74 65 61 64 20 6f 66 20 |iles ins|tead of |
|00001830| 61 20 6c 61 72 67 65 20 | 6e 75 6d 62 65 72 20 6f |a large |number o|
|00001840| 66 20 76 65 72 79 20 73 | 6d 61 6c 6c 20 66 69 6c |f very s|mall fil|
|00001850| 65 73 2e 0a 0a 41 75 64 | 69 6f 20 64 69 67 69 74 |es...Aud|io digit|
|00001860| 69 7a 61 74 69 6f 6e 20 | 6c 65 76 65 6c 73 0a 0a |ization |levels..|
|00001870| 54 68 65 20 6d 61 69 6e | 20 20 6c 65 76 65 6c 73 |The main| levels|
|00001880| 20 6f 66 20 20 61 75 64 | 69 6f 20 64 69 67 69 74 | of aud|io digit|
|00001890| 69 7a 61 74 69 6f 6e 20 | 20 74 68 61 6e 20 63 61 |ization | than ca|
|000018a0| 6e 20 20 62 65 20 75 73 | 65 64 20 6f 6e 20 61 20 |n be us|ed on a |
|000018b0| 43 44 2d 52 4f 4d 0a 28 | 6f 74 68 65 72 20 74 68 |CD-ROM.(|other th|
|000018c0| 61 6e 20 70 72 6f 70 72 | 69 65 74 61 72 79 20 66 |an propr|ietary f|
|000018d0| 69 6c 65 20 66 6f 72 6d | 61 74 73 20 61 6e 64 20 |ile form|ats and |
|000018e0| 4d 50 43 20 73 74 61 6e | 64 61 72 64 73 29 20 61 |MPC stan|dards) a|
|000018f0| 72 65 20 43 44 2d 44 69 | 67 69 74 61 6c 0a 41 75 |re CD-Di|gital.Au|
|00001900| 64 69 6f 20 28 50 43 4d | 2c 20 20 70 75 6c 73 65 |dio (PCM|, pulse|
|00001910| 20 63 6f 64 65 20 6d 6f | 64 75 6c 61 74 69 6f 6e | code mo|dulation|
|00001920| 29 20 61 6e 64 20 74 68 | 65 20 43 44 2d 49 20 41 |) and th|e CD-I A|
|00001930| 44 50 43 4d 20 28 61 64 | 61 70 74 69 76 65 20 64 |DPCM (ad|aptive d|
|00001940| 65 6c 74 61 0a 70 75 6c | 73 65 20 63 6f 64 65 20 |elta.pul|se code |
|00001950| 20 6d 6f 64 75 6c 61 74 | 69 6f 6e 29 2e 20 20 20 | modulat|ion). |
|00001960| 54 68 65 73 65 20 73 74 | 61 6e 64 61 72 64 73 20 |These st|andards |
|00001970| 20 61 6c 6c 6f 77 20 74 | 68 65 20 20 66 6f 6c 6c | allow t|he foll|
|00001980| 6f 77 69 6e 67 20 61 75 | 64 69 6f 0a 63 61 70 61 |owing au|dio.capa|
|00001990| 63 69 74 69 65 73 20 6f | 6e 20 61 20 43 44 2d 52 |cities o|n a CD-R|
|000019a0| 4f 4d 3a 0a 0a 20 20 20 | 0a 20 20 20 20 20 20 20 |OM:.. |. |
|000019b0| 20 20 20 20 20 20 66 73 | 20 20 20 20 20 20 20 72 | fs| r|
|000019c0| 65 73 20 20 20 20 20 20 | 42 57 20 20 20 20 20 20 |es |BW |
|000019d0| 20 20 20 68 6f 75 72 73 | 20 73 2f 6d 20 20 20 20 | hours| s/m |
|000019e0| 20 20 45 71 75 69 76 20 | 0a 20 20 20 0a 20 20 20 | Equiv |. . |
|000019f0| 43 44 2d 44 41 20 20 20 | 34 34 2e 31 4b 68 7a 20 |CD-DA |44.1Khz |
|00001a00| 20 20 31 36 20 62 69 74 | 20 20 20 32 30 4b 48 7a | 16 bit| 20KHz|
|00001a10| 20 20 20 20 20 20 31 20 | 68 72 20 53 20 20 20 20 | 1 |hr S |
|00001a20| 20 20 20 20 20 20 20 44 | 41 20 20 20 0a 20 20 20 | D|A . |
|00001a30| 4c 65 76 20 41 20 20 20 | 33 37 2e 38 4b 68 7a 20 |Lev A |37.8Khz |
|00001a40| 20 20 20 38 20 62 69 74 | 20 20 20 31 37 4b 68 7a | 8 bit| 17Khz|
|00001a50| 20 20 20 20 20 20 32 20 | 68 72 20 53 2f 34 20 68 | 2 |hr S/4 h|
|00001a60| 72 20 4d 20 20 20 20 4c | 50 20 20 20 0a 20 20 20 |r M L|P . |
|00001a70| 4c 65 76 20 42 20 20 20 | 33 37 2e 38 4b 68 7a 20 |Lev B |37.8Khz |
|00001a80| 20 20 20 34 20 62 69 74 | 20 20 20 31 37 4b 68 7a | 4 bit| 17Khz|
|00001a90| 20 20 20 20 20 20 34 20 | 68 72 20 53 2f 38 20 68 | 4 |hr S/8 h|
|00001aa0| 72 20 4d 20 20 20 20 46 | 4d 20 20 20 0a 20 20 20 |r M F|M . |
|00001ab0| 4c 65 76 20 43 20 20 20 | 31 38 2e 39 4b 68 7a 20 |Lev C |18.9Khz |
|00001ac0| 20 20 20 34 20 62 69 74 | 20 20 20 38 2e 35 4b 68 | 4 bit| 8.5Kh|
|00001ad0| 7a 20 20 20 20 20 38 20 | 68 72 20 53 2f 31 36 20 |z 8 |hr S/16 |
|00001ae0| 68 72 20 4d 20 20 20 41 | 4d 20 20 20 0a 20 20 20 |hr M A|M . |
|00001af0| 0a 41 6c 6c 20 61 62 6f | 75 74 20 43 44 2d 61 75 |.All abo|ut CD-au|
|00001b00| 64 69 6f 0a 0a 43 44 2d | 41 75 64 69 6f 2c 20 63 |dio..CD-|Audio, c|
|00001b10| 61 6e 20 20 70 6c 61 79 | 20 6f 6e 20 20 74 68 65 |an play| on the|
|00001b20| 20 76 61 73 74 20 20 6d | 61 6a 6f 72 69 74 79 20 | vast m|ajority |
|00001b30| 6f 66 20 20 69 6e 73 74 | 61 6c 6c 65 64 20 70 6c |of inst|alled pl|
|00001b40| 61 79 65 72 73 20 28 6f | 6e 6c 79 0a 73 6f 6d 65 |ayers (o|nly.some|
|00001b50| 20 6f 66 20 20 74 68 65 | 20 6f 6c 64 65 72 20 6d | of the| older m|
|00001b60| 6f 64 65 6c 73 20 64 69 | 64 6e 27 74 20 68 61 76 |odels di|dn't hav|
|00001b70| 65 20 74 68 65 20 61 75 | 64 69 6f 20 63 69 72 63 |e the au|dio circ|
|00001b80| 75 69 74 73 20 69 6e 63 | 6c 75 64 65 64 29 20 61 |uits inc|luded) a|
|00001b90| 6e 64 0a 69 73 20 65 61 | 73 69 6c 79 20 20 63 6f |nd.is ea|sily co|
|00001ba0| 6e 74 72 6f 6c 6c 65 64 | 20 62 79 20 20 73 69 6d |ntrolled| by sim|
|00001bb0| 70 6c 65 20 73 6f 66 74 | 77 61 72 65 2e 20 20 20 |ple soft|ware. |
|00001bc0| 55 73 65 72 73 20 20 6d | 75 73 74 20 62 65 20 69 |Users m|ust be i|
|00001bd0| 6e 73 74 61 6c 6c 69 6e | 67 0a 74 68 65 69 72 20 |nstallin|g.their |
|00001be0| 43 44 2d 52 4f 4d 20 20 | 64 72 69 76 65 20 77 69 |CD-ROM |drive wi|
|00001bf0| 74 68 20 61 6e 20 4d 53 | 43 44 45 58 20 76 65 72 |th an MS|CDEX ver|
|00001c00| 73 69 6f 6e 20 32 2e 30 | 20 6f 72 20 67 72 65 61 |sion 2.0| or grea|
|00001c10| 74 65 72 20 28 73 65 65 | 20 73 65 63 74 69 6f 6e |ter (see| section|
|00001c20| 0a 6f 6e 20 4d 53 43 44 | 45 58 29 2e 20 20 20 54 |.on MSCD|EX). T|
|00001c30| 68 65 20 20 74 77 6f 20 | 6d 61 69 6e 20 20 70 72 |he two |main pr|
|00001c40| 6f 62 6c 65 6d 73 20 77 | 69 74 68 20 20 75 73 69 |oblems w|ith usi|
|00001c50| 6e 67 20 74 68 69 73 20 | 66 6f 72 6d 61 74 20 74 |ng this |format t|
|00001c60| 6f 20 73 74 6f 72 65 0a | 61 75 64 69 6f 20 69 6e |o store.|audio in|
|00001c70| 66 6f 72 6d 61 74 69 6f | 6e 20 61 72 65 20 74 68 |formatio|n are th|
|00001c80| 61 74 20 79 6f 75 20 63 | 61 6e 20 6f 6e 6c 79 20 |at you c|an only |
|00001c90| 70 6c 61 79 20 61 75 64 | 69 6f 20 4f 52 20 6c 6f |play aud|io OR lo|
|00001ca0| 61 64 20 64 61 74 61 20 | 61 74 20 61 6e 79 0a 6f |ad data |at any.o|
|00001cb0| 6e 65 20 74 69 6d 65 20 | 61 6e 64 20 79 6f 75 20 |ne time |and you |
|00001cc0| 61 72 65 20 6c 69 6d 69 | 74 65 64 20 74 6f 20 61 |are limi|ted to a|
|00001cd0| 20 6d 61 78 69 6d 75 6d | 20 6f 66 20 6f 6e 65 20 | maximum| of one |
|00001ce0| 68 6f 75 72 20 6f 66 20 | 73 74 65 72 65 6f 20 6f |hour of |stereo o|
|00001cf0| 72 20 74 77 6f 0a 68 6f | 75 72 73 20 6f 66 20 20 |r two.ho|urs of |
|00001d00| 6d 6f 6e 6f 20 73 6f 75 | 6e 64 2e 20 20 50 6c 61 |mono sou|nd. Pla|
|00001d10| 79 69 6e 67 20 61 75 64 | 69 6f 20 77 68 69 6c 73 |ying aud|io whils|
|00001d20| 74 20 64 69 73 70 6c 61 | 79 69 6e 67 20 69 6d 61 |t displa|ying ima|
|00001d30| 67 65 73 20 63 61 6e 20 | 6f 6e 6c 79 0a 62 65 20 |ges can |only.be |
|00001d40| 64 6f 6e 65 20 62 79 3a | 0a 0a 20 20 20 20 20 61 |done by:|.. a|
|00001d50| 29 20 20 20 62 75 66 66 | 65 72 69 6e 67 20 69 6d |) buff|ering im|
|00001d60| 61 67 65 73 20 69 6e 20 | 6d 65 6d 6f 72 79 20 62 |ages in |memory b|
|00001d70| 65 66 6f 72 65 20 70 6c | 61 79 69 6e 67 20 61 6e |efore pl|aying an|
|00001d80| 20 61 75 64 69 6f 20 73 | 65 71 75 65 6e 63 65 2c | audio s|equence,|
|00001d90| 0a 0a 20 20 20 20 20 62 | 29 20 20 20 70 72 65 20 |.. b|) pre |
|00001da0| 69 6e 73 74 61 6c 6c 69 | 6e 67 20 69 6d 61 67 65 |installi|ng image|
|00001db0| 73 20 20 6f 6e 74 6f 20 | 74 68 65 20 20 75 73 65 |s onto |the use|
|00001dc0| 72 73 20 68 61 72 64 20 | 64 69 73 6b 20 73 6f 20 |rs hard |disk so |
|00001dd0| 72 65 63 6f 76 65 72 69 | 6e 67 0a 20 20 20 20 20 |recoveri|ng. |
|00001de0| 20 20 20 20 20 69 6e 66 | 6f 72 6d 61 74 69 6f 6e | inf|ormation|
|00001df0| 20 66 72 6f 6d 20 74 77 | 6f 20 6d 65 64 69 61 20 | from tw|o media |
|00001e00| 61 74 20 6f 6e 63 65 2c | 0a 0a 20 20 20 20 20 63 |at once,|.. c|
|00001e10| 29 20 20 20 68 65 61 64 | 2d 77 68 69 7a 7a 69 6e |) head|-whizzin|
|00001e20| 67 20 2d 20 20 6c 6f 61 | 64 20 61 6e 20 20 69 6d |g - loa|d an im|
|00001e30| 61 67 65 2c 20 70 6c 61 | 79 20 20 61 75 64 69 6f |age, pla|y audio|
|00001e40| 2c 20 6c 6f 61 64 20 61 | 6e 20 69 6d 61 67 65 2c |, load a|n image,|
|00001e50| 0a 20 20 20 20 20 20 20 | 20 20 20 70 6c 61 79 20 |. | play |
|00001e60| 61 75 64 69 6f 20 65 74 | 63 2e 2e 2e 0a 0a 43 44 |audio et|c.....CD|
|00001e70| 2d 41 75 64 69 6f 20 63 | 61 6e 20 62 65 20 61 63 |-Audio c|an be ac|
|00001e80| 63 65 73 73 65 64 20 69 | 6e 20 74 77 6f 20 77 61 |cessed i|n two wa|
|00001e90| 79 73 20 74 68 72 6f 75 | 67 68 20 61 6e 79 20 73 |ys throu|gh any s|
|00001ea0| 74 61 6e 64 61 72 64 20 | 43 44 2d 52 4f 4d 20 64 |tandard |CD-ROM d|
|00001eb0| 72 69 76 65 0a 77 69 74 | 68 20 61 75 64 69 6f 20 |rive.wit|h audio |
|00001ec0| 63 61 70 61 62 69 6c 69 | 74 69 65 73 3a 0a 0a 20 |capabili|ties:.. |
|00001ed0| 20 20 20 20 61 29 20 20 | 20 62 79 20 74 72 61 63 | a) | by trac|
|00001ee0| 6b 2e 20 20 4e 6f 74 65 | 20 74 68 61 74 20 20 74 |k. Note| that t|
|00001ef0| 68 65 20 43 44 2d 52 4f | 4d 20 20 74 72 61 63 6b |he CD-RO|M track|
|00001f00| 20 6d 75 73 74 20 20 62 | 65 20 74 72 61 63 6b 20 | must b|e track |
|00001f10| 20 6f 6e 65 2c 0a 20 20 | 20 20 20 20 20 20 20 20 | one,. | |
|00001f20| 61 75 64 69 6f 20 74 72 | 61 63 6b 73 20 77 69 6c |audio tr|acks wil|
|00001f30| 6c 20 74 68 65 6e 20 62 | 65 20 61 76 61 69 6c 61 |l then b|e availa|
|00001f40| 62 6c 65 20 61 73 20 74 | 72 61 63 6b 20 32 20 74 |ble as t|rack 2 t|
|00001f50| 6f 20 39 39 2e 0a 0a 20 | 20 20 20 20 62 29 20 20 |o 99... | b) |
|00001f60| 20 62 79 20 74 69 6d 65 | 20 20 63 6f 64 65 2e 20 | by time| code. |
|00001f70| 4e 6f 74 65 20 20 74 68 | 61 74 20 61 20 20 6d 61 |Note th|at a ma|
|00001f80| 78 69 6d 75 6d 20 72 65 | 73 6f 6c 75 74 69 6f 6e |ximum re|solution|
|00001f90| 20 6f 66 20 37 35 20 66 | 72 61 6d 65 73 0a 20 20 | of 75 f|rames. |
|00001fa0| 20 20 20 20 20 20 20 20 | 70 65 72 20 73 65 63 6f | |per seco|
|00001fb0| 6e 64 20 20 69 73 20 61 | 63 63 65 73 73 69 62 6c |nd is a|ccessibl|
|00001fc0| 65 2e 20 20 49 6e 20 6f | 75 72 20 65 78 70 65 72 |e. In o|ur exper|
|00001fd0| 69 65 6e 63 65 20 79 6f | 75 20 73 68 6f 75 6c 64 |ience yo|u should|
|00001fe0| 20 61 69 6d 0a 20 20 20 | 20 20 20 20 20 20 20 66 | aim. | f|
|00001ff0| 6f 72 20 61 6e 20 20 61 | 63 63 75 72 61 63 79 20 |or an a|ccuracy |
|00002000| 62 65 74 77 65 65 6e 20 | 20 70 6c 61 79 65 72 73 |between | players|
|00002010| 20 6f 66 20 74 68 65 20 | 73 61 6d 65 20 6d 6f 64 | of the |same mod|
|00002020| 65 6c 20 6f 66 20 2b 2f | 2d 20 32 0a 20 20 20 20 |el of +/|- 2. |
|00002030| 20 20 20 20 20 20 66 72 | 61 6d 65 73 20 61 6e 64 | fr|ames and|
|00002040| 20 20 62 65 74 77 65 65 | 6e 20 70 6c 61 79 65 72 | betwee|n player|
|00002050| 73 20 6f 66 20 64 69 66 | 66 65 72 65 6e 74 20 6d |s of dif|ferent m|
|00002060| 61 6e 75 66 61 63 74 75 | 72 65 72 73 20 2b 2f 2d |anufactu|rers +/-|
|00002070| 20 34 0a 20 20 20 20 20 | 20 20 20 20 20 66 72 61 | 4. | fra|
|00002080| 6d 65 73 2e 0a 0a 49 6e | 20 62 6f 74 68 20 20 63 |mes...In| both c|
|00002090| 61 73 65 73 20 79 6f 75 | 20 20 63 61 6e 20 63 68 |ases you| can ch|
|000020a0| 6f 6f 73 65 20 20 74 6f | 20 70 6c 61 79 20 6c 65 |oose to| play le|
|000020b0| 66 74 2c 20 72 69 67 68 | 74 20 63 68 61 6e 6e 65 |ft, righ|t channe|
|000020c0| 6c 73 20 6f 72 20 73 74 | 65 72 65 6f 0a 28 6f 72 |ls or st|ereo.(or|
|000020d0| 20 65 76 65 6e 20 6d 75 | 74 65 20 77 68 69 63 68 | even mu|te which|
|000020e0| 20 79 6f 75 20 63 61 6e | 20 75 73 65 20 66 6f 72 | you can| use for|
|000020f0| 20 73 79 6e 63 68 72 6f | 6e 69 73 61 74 69 6f 6e | synchro|nisation|
|00002100| 29 2e 0a 0a 4c 65 76 65 | 6c 20 41 2c 20 42 20 61 |)...Leve|l A, B a|
|00002110| 6e 64 20 43 20 41 44 50 | 43 4d 0a 0a 4c 65 76 65 |nd C ADP|CM..Leve|
|00002120| 6c 20 41 20 20 41 44 50 | 43 4d 20 69 73 20 20 6e |l A ADP|CM is n|
|00002130| 6f 20 6c 6f 6e 67 65 72 | 20 20 72 65 63 6f 67 6e |o longer| recogn|
|00002140| 69 7a 65 64 20 61 73 20 | 20 61 20 75 73 61 62 6c |ized as | a usabl|
|00002150| 65 20 20 73 74 61 6e 64 | 61 72 64 20 61 6e 64 20 |e stand|ard and |
|00002160| 69 73 0a 75 6e 6c 69 6b | 65 6c 79 20 74 6f 20 20 |is.unlik|ely to |
|00002170| 62 65 20 73 75 70 70 6f | 72 74 65 64 20 20 69 6e |be suppo|rted in|
|00002180| 20 74 68 65 20 66 75 74 | 75 72 65 20 6d 61 63 68 | the fut|ure mach|
|00002190| 69 6e 65 73 2e 20 20 57 | 68 69 6c 73 74 20 74 68 |ines. W|hilst th|
|000021a0| 65 20 71 75 61 6c 69 74 | 79 0a 69 73 20 71 75 69 |e qualit|y.is qui|
|000021b0| 74 65 20 20 68 69 67 68 | 20 28 72 6f 75 67 68 6c |te high| (roughl|
|000021c0| 79 20 65 71 75 69 76 61 | 6c 65 6e 74 20 74 6f 20 |y equiva|lent to |
|000021d0| 74 68 61 74 20 6f 66 20 | 4c 50 20 64 69 73 6b 73 |that of |LP disks|
|000021e0| 29 20 20 74 68 65 20 70 | 6f 74 65 6e 74 69 61 6c |) the p|otential|
|000021f0| 0a 67 61 69 6e 73 20 69 | 6e 20 61 64 64 69 74 69 |.gains i|n additi|
|00002200| 6f 6e 61 6c 20 61 75 64 | 69 6f 20 74 69 6d 65 20 |onal aud|io time |
|00002210| 77 61 73 20 74 68 6f 75 | 67 68 74 20 6e 6f 74 20 |was thou|ght not |
|00002220| 74 6f 20 62 65 20 77 6f | 72 74 68 20 70 75 72 73 |to be wo|rth purs|
|00002230| 75 69 6e 67 2e 0a 0a 4c | 65 76 65 6c 20 42 20 20 |uing...L|evel B |
|00002240| 41 44 50 43 4d 20 69 73 | 20 20 63 6f 6d 6d 6f 6e |ADPCM is| common|
|00002250| 6c 79 20 75 73 65 64 20 | 20 69 6e 20 43 44 2d 49 |ly used | in CD-I|
|00002260| 20 20 61 6e 64 20 43 44 | 2d 52 4f 4d 20 58 41 20 | and CD|-ROM XA |
|00002270| 6d 61 74 65 72 69 61 6c | 20 61 73 20 61 0a 72 65 |material| as a.re|
|00002280| 61 73 6f 6e 61 62 6c 65 | 20 71 75 61 6c 69 74 79 |asonable| quality|
|00002290| 20 20 63 6f 6d 70 72 65 | 73 73 69 6f 6e 20 73 74 | compre|ssion st|
|000022a0| 61 6e 64 61 72 64 20 66 | 6f 72 20 6d 75 73 69 63 |andard f|or music|
|000022b0| 2c 20 72 6f 75 67 68 6c | 79 20 65 71 75 69 76 61 |, roughl|y equiva|
|000022c0| 6c 65 6e 74 0a 74 6f 20 | 74 68 65 20 20 73 6f 75 |lent.to |the sou|
|000022d0| 6e 64 20 79 6f 75 20 20 | 77 6f 75 6c 64 20 6f 62 |nd you |would ob|
|000022e0| 74 61 69 6e 20 20 6f 66 | 20 61 6e 20 20 46 4d 20 |tain of| an FM |
|000022f0| 72 61 64 69 6f 20 20 73 | 74 61 74 69 6f 6e 20 28 |radio s|tation (|
|00002300| 62 75 74 20 77 69 74 68 | 20 6e 6f 0a 68 6f 72 72 |but with| no.horr|
|00002310| 69 62 6c 65 20 44 4a 73 | 21 29 2e 0a 0a 4c 65 76 |ible DJs|!)...Lev|
|00002320| 65 6c 20 43 20 20 41 44 | 50 43 4d 20 67 69 76 65 |el C AD|PCM give|
|00002330| 73 20 20 79 6f 75 20 20 | 61 20 20 67 72 65 61 74 |s you |a great|
|00002340| 20 20 71 75 61 6e 74 69 | 74 79 20 20 6f 66 20 20 | quanti|ty of |
|00002350| 61 75 64 69 6f 20 20 62 | 75 74 20 20 77 69 74 68 |audio b|ut with|
|00002360| 20 20 61 0a 73 75 62 73 | 74 61 6e 74 69 61 6c 20 | a.subs|tantial |
|00002370| 72 65 64 75 63 74 69 6f | 6e 20 20 69 6e 20 71 75 |reductio|n in qu|
|00002380| 61 6c 69 74 79 20 20 61 | 6e 64 20 69 73 20 20 75 |ality a|nd is u|
|00002390| 73 75 61 6c 6c 79 20 6f | 6e 6c 79 20 63 6f 6e 73 |sually o|nly cons|
|000023a0| 69 64 65 72 65 64 20 66 | 6f 72 0a 73 70 65 65 63 |idered f|or.speec|
|000023b0| 68 20 2d 20 77 68 65 72 | 65 20 61 20 68 69 67 68 |h - wher|e a high|
|000023c0| 20 62 61 6e 64 77 69 64 | 74 68 20 69 73 20 6e 6f | bandwid|th is no|
|000023d0| 74 20 72 65 71 75 69 72 | 65 64 2e 0a 0a 4c 65 76 |t requir|ed...Lev|
|000023e0| 65 6c 20 42 20 20 61 6e | 64 20 43 20 20 64 65 63 |el B an|d C dec|
|000023f0| 6f 64 69 6e 67 20 61 72 | 65 20 20 73 75 70 70 6f |oding ar|e suppo|
|00002400| 72 74 65 64 20 62 79 20 | 20 74 68 65 20 20 43 44 |rted by | the CD|
|00002410| 2d 49 20 20 61 6e 64 20 | 20 43 44 2d 52 4f 4d 20 |-I and | CD-ROM |
|00002420| 20 58 41 0a 6d 61 63 68 | 69 6e 65 73 20 77 68 69 | XA.mach|ines whi|
|00002430| 63 68 20 20 68 61 76 65 | 20 79 65 74 20 20 74 6f |ch have| yet to|
|00002440| 20 70 65 6e 65 74 72 61 | 74 65 20 20 74 68 65 20 | penetra|te the |
|00002450| 6d 61 72 6b 65 74 20 20 | 74 6f 20 61 20 6c 61 72 |market |to a lar|
|00002460| 67 65 20 64 65 67 72 65 | 65 2e 0a 42 6f 74 68 20 |ge degre|e..Both |
|00002470| 6c 65 76 65 6c 73 20 6f | 66 20 61 75 64 69 6f 20 |levels o|f audio |
|00002480| 72 65 71 75 69 72 65 20 | 74 68 61 74 20 74 68 65 |require |that the|
|00002490| 20 64 69 73 63 20 62 65 | 20 6d 61 73 74 65 72 65 | disc be| mastere|
|000024a0| 64 20 69 6e 20 4d 6f 64 | 65 20 32 2c 20 66 6f 72 |d in Mod|e 2, for|
|000024b0| 6d 0a 32 20 28 73 65 65 | 20 64 69 73 63 75 73 73 |m.2 (see| discuss|
|000024c0| 69 6f 6e 20 6f 66 20 73 | 74 61 6e 64 61 72 64 73 |ion of s|tandards|
|000024d0| 20 61 6e 64 20 6d 6f 64 | 65 73 29 20 73 6f 20 74 | and mod|es) so t|
|000024e0| 68 65 20 6d 61 73 74 65 | 72 69 6e 67 20 68 6f 75 |he maste|ring hou|
|000024f0| 73 65 20 6e 65 65 64 73 | 0a 74 6f 20 6b 6e 6f 77 |se needs|.to know|
|00002500| 2e 0a 0a 54 68 65 20 62 | 69 67 20 20 61 64 76 61 |...The b|ig adva|
|00002510| 6e 74 61 67 65 20 74 68 | 61 74 20 20 41 44 50 43 |ntage th|at ADPC|
|00002520| 4d 20 61 75 64 69 6f 20 | 20 68 61 73 20 6f 76 65 |M audio | has ove|
|00002530| 72 20 43 44 2d 44 41 20 | 69 73 20 74 68 61 74 20 |r CD-DA |is that |
|00002540| 74 68 65 20 73 6f 75 6e | 64 0a 63 61 6e 20 62 65 |the soun|d.can be|
|00002550| 20 20 69 6e 74 65 72 6c | 65 61 76 65 64 20 77 69 | interl|eaved wi|
|00002560| 74 68 20 20 64 61 74 61 | 2e 20 20 20 54 68 75 73 |th data|. Thus|
|00002570| 20 65 6e 61 62 6c 69 6e | 67 20 20 79 6f 75 72 20 | enablin|g your |
|00002580| 73 6f 66 74 77 61 72 65 | 20 74 6f 20 6c 6f 61 64 |software| to load|
|00002590| 0a 69 6d 61 67 65 73 20 | 61 6e 64 20 20 74 65 78 |.images |and tex|
|000025a0| 74 20 73 69 6d 75 6c 74 | 61 6e 65 6f 75 73 6c 79 |t simult|aneously|
|000025b0| 20 20 77 68 69 6c 73 74 | 20 70 6c 61 79 69 6e 67 | whilst| playing|
|000025c0| 20 20 61 75 64 69 6f 20 | 73 65 63 74 69 6f 6e 73 | audio |sections|
|000025d0| 2e 20 20 54 68 69 73 0a | 69 6e 74 65 72 6c 65 61 |. This.|interlea|
|000025e0| 76 69 6e 67 20 20 63 61 | 6e 20 20 61 6c 73 6f 20 |ving ca|n also |
|000025f0| 20 62 65 20 20 70 65 72 | 66 6f 72 6d 65 64 20 20 | be per|formed |
|00002600| 62 65 74 77 65 65 6e 20 | 20 27 63 68 61 6e 6e 65 |between | 'channe|
|00002610| 6c 73 27 20 20 6f 66 20 | 20 61 75 64 69 6f 0a 61 |ls' of | audio.a|
|00002620| 6c 6c 6f 77 69 6e 67 20 | 20 74 68 65 20 20 73 6f |llowing | the so|
|00002630| 66 74 77 61 72 65 20 20 | 74 6f 20 20 73 77 69 74 |ftware |to swit|
|00002640| 63 68 20 20 62 65 74 77 | 65 65 6e 20 20 6d 75 6c |ch betw|een mul|
|00002650| 74 69 6c 69 6e 67 75 61 | 6c 20 20 74 72 61 63 6b |tilingua|l track|
|00002660| 73 20 20 6f 72 0a 64 69 | 66 66 65 72 65 6e 74 20 |s or.di|fferent |
|00002670| 62 61 63 6b 69 6e 67 20 | 74 72 61 63 6b 73 20 27 |backing |tracks '|
|00002680| 6f 6e 20 74 68 65 20 66 | 6c 79 27 2e 20 20 4d 6f |on the f|ly'. Mo|
|00002690| 73 74 20 70 6c 61 79 65 | 72 73 20 77 69 6c 6c 20 |st playe|rs will |
|000026a0| 61 6c 73 6f 20 70 6c 61 | 79 20 75 70 0a 74 6f 20 |also pla|y up.to |
|000026b0| 66 6f 75 72 20 20 63 68 | 61 6e 6e 65 6c 73 20 73 |four ch|annels s|
|000026c0| 69 6d 75 6c 74 61 6e 65 | 6f 75 73 6c 79 20 20 61 |imultane|ously a|
|000026d0| 6c 6c 6f 77 20 67 72 65 | 61 74 20 66 6c 65 78 69 |llow gre|at flexi|
|000026e0| 62 69 6c 69 74 79 20 69 | 6e 20 74 68 65 20 73 6f |bility i|n the so|
|000026f0| 75 6e 64 0a 70 72 65 73 | 65 6e 74 65 64 20 74 6f |und.pres|ented to|
|00002700| 20 74 68 65 20 65 6e 64 | 20 75 73 65 72 2e 0a 0a | the end| user...|
|00002710| 49 6e 74 65 72 6c 65 61 | 76 69 6e 67 2c 20 68 6f |Interlea|ving, ho|
|00002720| 77 20 69 74 20 77 6f 72 | 6b 73 20 61 6e 64 20 77 |w it wor|ks and w|
|00002730| 68 61 74 20 79 6f 75 20 | 6c 6f 6f 73 65 0a 0a 49 |hat you |loose..I|
|00002740| 6e 74 65 72 6c 65 61 76 | 69 6e 67 20 69 73 20 20 |nterleav|ing is |
|00002750| 61 74 20 74 68 65 20 20 | 65 78 70 65 6e 73 65 20 |at the |expense |
|00002760| 6f 66 20 20 61 75 64 69 | 6f 20 63 61 70 61 63 69 |of audi|o capaci|
|00002770| 74 79 20 20 61 6e 64 20 | 69 73 20 20 73 6f 6d 65 |ty and |is some|
|00002780| 74 69 6d 65 73 0a 71 75 | 69 74 65 20 74 72 69 63 |times.qu|ite tric|
|00002790| 6b 79 20 74 6f 20 77 6f | 72 6b 20 6f 75 74 2e 20 |ky to wo|rk out. |
|000027a0| 20 49 74 20 69 73 20 62 | 65 73 74 20 63 6f 6e 73 | It is b|est cons|
|000027b0| 69 64 65 72 65 64 20 62 | 79 20 75 73 69 6e 67 20 |idered b|y using |
|000027c0| 61 6e 20 65 78 61 6d 70 | 6c 65 3a 0a 0a 20 20 20 |an examp|le:.. |
|000027d0| 20 20 41 20 73 65 71 75 | 65 6e 63 65 20 20 72 65 | A sequ|ence re|
|000027e0| 71 75 69 72 65 73 20 74 | 77 6f 20 20 64 69 66 66 |quires t|wo diff|
|000027f0| 65 72 65 6e 74 20 63 68 | 61 6e 6e 65 6c 73 20 20 |erent ch|annels |
|00002800| 6f 66 20 61 75 64 69 6f | 20 69 6e 20 6c 65 76 65 |of audio| in leve|
|00002810| 6c 20 42 0a 20 20 20 20 | 20 6d 6f 6e 6f 2c 20 6f |l B. | mono, o|
|00002820| 6e 65 20 61 20 6d 75 73 | 69 63 20 62 61 63 6b 67 |ne a mus|ic backg|
|00002830| 72 6f 75 6e 64 20 74 72 | 61 63 6b 2c 20 6f 6e 65 |round tr|ack, one|
|00002840| 20 61 20 64 65 73 63 72 | 69 70 74 69 76 65 20 76 | a descr|iptive v|
|00002850| 6f 69 63 65 20 6f 76 65 | 72 2e 0a 20 20 20 20 20 |oice ove|r.. |
|00002860| 57 68 61 74 20 69 73 20 | 74 68 65 20 64 61 74 61 |What is |the data|
|00002870| 20 72 61 74 65 20 61 76 | 61 69 6c 61 62 6c 65 20 | rate av|ailable |
|00002880| 66 6f 72 20 73 69 6d 75 | 6c 74 61 6e 65 6f 75 73 |for simu|ltaneous|
|00002890| 20 69 6d 61 67 65 73 3f | 0a 0a 20 20 20 20 20 4c | images?|.. L|
|000028a0| 65 76 65 6c 20 42 20 6d | 6f 6e 6f 20 61 75 64 69 |evel B m|ono audi|
|000028b0| 6f 20 77 69 6c 6c 20 63 | 6f 6e 73 75 6d 65 20 6f |o will c|onsume o|
|000028c0| 6e 65 20 65 69 67 68 74 | 68 20 6f 66 20 61 6e 20 |ne eight|h of an |
|000028d0| 61 76 61 69 6c 61 62 6c | 65 20 73 65 63 6f 6e 64 |availabl|e second|
|000028e0| 0a 20 20 20 20 20 70 65 | 72 20 73 65 63 6f 6e 64 |. pe|r second|
|000028f0| 20 20 6f 66 20 43 44 20 | 20 70 6c 61 79 69 6e 67 | of CD | playing|
|00002900| 20 74 69 6d 65 2e 20 20 | 54 68 75 73 2c 20 74 77 | time. |Thus, tw|
|00002910| 6f 20 73 69 6d 75 6c 74 | 61 6e 65 6f 75 73 20 63 |o simult|aneous c|
|00002920| 68 61 6e 6e 65 6c 73 0a | 20 20 20 20 20 77 69 6c |hannels.| wil|
|00002930| 6c 20 63 6f 6e 73 75 6d | 65 20 20 6f 6e 65 20 71 |l consum|e one q|
|00002940| 75 61 72 74 65 72 20 20 | 6f 66 20 61 20 20 73 65 |uarter |of a se|
|00002950| 63 6f 6e 64 20 70 65 72 | 20 20 73 65 63 6f 6e 64 |cond per| second|
|00002960| 20 70 6c 61 79 69 6e 67 | 20 74 69 6d 65 2e 0a 20 | playing| time.. |
|00002970| 20 20 20 20 54 68 72 65 | 65 20 71 75 61 72 74 65 | Thre|e quarte|
|00002980| 72 73 20 20 6f 66 20 61 | 20 20 73 65 63 6f 6e 64 |rs of a| second|
|00002990| 20 70 65 72 20 20 73 65 | 63 6f 6e 64 20 69 73 20 | per se|cond is |
|000029a0| 20 61 76 61 69 6c 61 62 | 6c 65 20 66 6f 72 20 20 | availab|le for |
|000029b0| 6f 74 68 65 72 0a 20 20 | 20 20 20 64 61 74 61 2e |other. | data.|
|000029c0| 20 20 20 45 61 63 68 20 | 73 65 63 6f 6e 64 20 20 | Each |second |
|000029d0| 6f 66 20 74 68 65 20 20 | 43 44 20 69 6e 20 4d 6f |of the |CD in Mo|
|000029e0| 64 65 20 32 2c 20 46 6f | 72 6d 20 32 20 68 61 73 |de 2, Fo|rm 2 has|
|000029f0| 20 32 2c 33 33 36 20 62 | 79 74 65 73 0a 20 20 20 | 2,336 b|ytes. |
|00002a00| 20 20 74 69 6d 65 73 20 | 37 35 20 20 62 6c 6f 63 | times |75 bloc|
|00002a10| 6b 73 2e 20 20 53 6f 20 | 74 68 72 65 65 20 71 75 |ks. So |three qu|
|00002a20| 61 72 74 65 72 73 20 6f | 66 20 32 2c 33 33 36 20 |arters o|f 2,336 |
|00002a30| 74 69 6d 65 73 20 37 35 | 20 69 73 20 31 33 31 2c |times 75| is 131,|
|00002a40| 34 30 30 0a 20 20 20 20 | 20 62 79 74 65 73 20 70 |400. | bytes p|
|00002a50| 65 72 20 20 73 65 63 6f | 6e 64 2e 20 20 49 66 20 |er seco|nd. If |
|00002a60| 79 6f 75 72 20 61 76 65 | 72 61 67 65 20 53 56 47 |your ave|rage SVG|
|00002a70| 41 20 69 6d 61 67 65 20 | 74 61 6b 65 73 20 75 70 |A image |takes up|
|00002a80| 20 31 30 30 4b 20 74 68 | 61 74 0a 20 20 20 20 20 | 100K th|at. |
|00002a90| 6d 65 61 6e 73 20 20 79 | 6f 75 20 20 20 63 61 6e |means y|ou can|
|00002aa0| 20 20 70 69 70 65 20 20 | 20 6f 66 66 20 20 31 2e | pipe | off 1.|
|00002ab0| 33 20 20 20 69 6d 61 67 | 65 73 20 20 70 65 72 20 |3 imag|es per |
|00002ac0| 20 20 73 65 63 6f 6e 64 | 20 20 20 77 68 69 6c 73 | second| whils|
|00002ad0| 74 0a 20 20 20 20 20 73 | 69 6d 75 6c 74 61 6e 65 |t. s|imultane|
|00002ae0| 6f 75 73 6c 79 20 70 6c | 61 79 69 6e 67 20 6f 6e |ously pl|aying on|
|00002af0| 65 20 6f 72 20 62 6f 74 | 68 20 6f 66 20 74 68 65 |e or bot|h of the|
|00002b00| 20 61 75 64 69 6f 20 74 | 72 61 63 6b 73 2e 0a 0a | audio t|racks...|
|00002b10| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00002b20| 20 20 20 20 20 20 20 4d | 61 6b 69 6e 67 20 45 66 | M|aking Ef|
|00002b30| 66 69 63 69 65 6e 74 20 | 43 44 2d 52 4f 4d 73 0a |ficient |CD-ROMs.|
|00002b40| 0a 53 79 73 74 65 6d 20 | 45 6c 65 6d 65 6e 74 73 |.System |Elements|
|00002b50| 0a 0a 49 6e 20 6f 72 64 | 65 72 20 74 68 61 74 20 |..In ord|er that |
|00002b60| 61 20 64 65 76 65 6c 6f | 70 65 72 20 63 61 6e 20 |a develo|per can |
|00002b70| 6f 70 74 69 6d 69 73 65 | 20 61 20 43 44 2d 52 4f |optimise| a CD-RO|
|00002b80| 4d 20 70 72 6f 64 75 63 | 74 20 69 74 20 69 73 20 |M produc|t it is |
|00002b90| 6e 6f 74 0a 6a 75 73 74 | 20 61 20 20 73 69 6d 70 |not.just| a simp|
|00002ba0| 6c 65 20 63 61 73 65 20 | 20 6f 66 20 61 6e 61 6c |le case | of anal|
|00002bb0| 79 73 69 6e 67 20 20 74 | 68 65 20 43 44 2d 52 4f |ysing t|he CD-RO|
|00002bc0| 4d 20 20 61 72 63 68 69 | 74 65 63 74 75 72 65 2e |M archi|tecture.|
|00002bd0| 20 20 54 68 65 0a 70 65 | 72 66 6f 72 6d 61 6e 63 | The.pe|rformanc|
|00002be0| 65 20 6f 66 20 20 61 20 | 43 44 2d 52 4f 4d 20 20 |e of a |CD-ROM |
|00002bf0| 69 73 20 20 67 6f 76 65 | 72 6e 65 64 20 20 61 73 |is gove|rned as|
|00002c00| 20 20 6d 75 63 68 20 20 | 62 79 20 20 74 68 65 20 | much |by the |
|00002c10| 20 73 79 73 74 65 6d 0a | 65 6c 65 6d 65 6e 74 73 | system.|elements|
|00002c20| 20 6f 66 20 20 74 68 65 | 20 74 61 72 67 65 74 20 | of the| target |
|00002c30| 20 61 73 20 20 62 79 20 | 20 74 68 65 20 20 6d 65 | as by | the me|
|00002c40| 64 69 75 6d 2e 20 20 41 | 20 20 64 65 76 65 6c 6f |dium. A| develo|
|00002c50| 70 65 72 20 20 6d 75 73 | 74 0a 75 6e 64 65 72 73 |per mus|t.unders|
|00002c60| 74 61 6e 64 20 20 65 61 | 63 68 20 20 20 65 6c 65 |tand ea|ch ele|
|00002c70| 6d 65 6e 74 20 20 6f 66 | 20 20 20 73 75 63 68 20 |ment of| such |
|00002c80| 20 61 20 20 20 73 79 73 | 74 65 6d 20 20 61 6e 64 | a sys|tem and|
|00002c90| 20 20 20 6f 70 74 69 6d | 69 73 65 0a 61 63 63 6f | optim|ise.acco|
|00002ca0| 72 64 69 6e 67 6c 79 2e | 20 57 65 20 77 69 6c 6c |rdingly.| We will|
|00002cb0| 20 61 64 64 72 65 73 73 | 20 61 6c 6c 20 6f 66 20 | address| all of |
|00002cc0| 74 68 65 73 65 20 65 6c | 65 6d 65 6e 74 73 20 62 |these el|ements b|
|00002cd0| 65 6c 6f 77 2c 20 72 61 | 6e 67 69 6e 67 0a 66 72 |elow, ra|nging.fr|
|00002ce0| 6f 6d 20 74 68 65 20 20 | 6f 70 65 72 61 74 69 6f |om the |operatio|
|00002cf0| 6e 20 20 6f 66 20 20 74 | 68 65 20 20 63 6f 6d 70 |n of t|he comp|
|00002d00| 75 74 65 72 27 73 20 20 | 6f 70 65 72 61 74 69 6e |uter's |operatin|
|00002d10| 67 20 20 73 79 73 74 65 | 6d 2c 20 20 74 68 65 0a |g syste|m, the.|
|00002d20| 6f 70 65 72 61 74 69 6e | 67 20 73 79 73 74 65 6d |operatin|g system|
|00002d30| 20 20 65 78 74 65 6e 73 | 69 6f 6e 2c 20 74 68 65 | extens|ion, the|
|00002d40| 20 20 64 65 76 69 63 65 | 20 64 72 69 76 65 72 2c | device| driver,|
|00002d50| 20 74 68 65 20 43 44 2d | 52 4f 4d 20 64 72 69 76 | the CD-|ROM driv|
|00002d60| 65 0a 68 61 72 64 77 61 | 72 65 20 61 6e 64 2c 20 |e.hardwa|re and, |
|00002d70| 6f 66 20 63 6f 75 72 73 | 65 20 74 68 65 20 43 44 |of cours|e the CD|
|00002d80| 2d 52 4f 4d 20 69 74 73 | 65 6c 66 2e 0a 0a 57 65 |-ROM its|elf...We|
|00002d90| 20 77 69 6c 6c 20 20 61 | 70 70 72 6f 61 63 68 20 | will a|pproach |
|00002da0| 74 68 69 73 20 20 62 79 | 20 61 6e 61 6c 79 73 69 |this by| analysi|
|00002db0| 6e 67 20 66 69 72 73 74 | 20 74 68 65 20 73 74 72 |ng first| the str|
|00002dc0| 75 63 74 75 72 65 20 6f | 66 20 61 20 43 44 2d 0a |ucture o|f a CD-.|
|00002dd0| 52 4f 4d 20 61 6e 64 20 | 69 74 73 20 65 66 66 65 |ROM and |its effe|
|00002de0| 63 74 20 6f 6e 20 70 65 | 72 66 6f 72 6d 61 6e 63 |ct on pe|rformanc|
|00002df0| 65 20 77 69 74 68 20 72 | 65 67 61 72 64 20 74 6f |e with r|egard to|
|00002e00| 20 74 68 65 20 73 79 73 | 74 65 6d 2e 0a 0a 44 69 | the sys|tem...Di|
|00002e10| 72 65 63 74 6f 72 79 20 | 53 74 72 75 63 74 75 72 |rectory |Structur|
|00002e20| 65 73 0a 0a 54 68 65 20 | 6c 6f 67 69 63 61 6c 20 |es..The |logical |
|00002e30| 20 73 65 71 75 65 6e 63 | 65 20 6f 66 20 20 65 76 | sequenc|e of ev|
|00002e40| 65 6e 74 73 20 77 68 65 | 6e 20 20 79 6f 75 72 20 |ents whe|n your |
|00002e50| 70 72 6f 67 72 61 6d 6d | 65 20 20 72 65 71 75 65 |programm|e reque|
|00002e60| 73 74 73 20 61 0a 66 69 | 6c 65 20 61 63 63 65 73 |sts a.fi|le acces|
|00002e70| 73 20 20 68 61 73 20 74 | 6f 20 20 62 65 20 77 65 |s has t|o be we|
|00002e80| 6c 6c 20 20 75 6e 64 65 | 72 73 74 6f 6f 64 20 62 |ll unde|rstood b|
|00002e90| 65 66 6f 72 65 20 20 6f | 70 74 69 6d 69 73 61 74 |efore o|ptimisat|
|00002ea0| 69 6f 6e 20 63 61 6e 0a | 6f 63 63 75 72 2e 20 57 |ion can.|occur. W|
|00002eb0| 68 65 6e 20 61 20 72 65 | 71 75 65 73 74 20 69 73 |hen a re|quest is|
|00002ec0| 20 73 65 6e 74 20 74 6f | 20 6f 70 65 6e 20 61 20 | sent to| open a |
|00002ed0| 66 69 6c 65 20 74 68 65 | 20 6f 70 65 72 61 74 69 |file the| operati|
|00002ee0| 6e 67 20 73 79 73 74 65 | 6d 0a 77 69 6c 6c 20 66 |ng syste|m.will f|
|00002ef0| 69 72 73 74 20 6c 6f 61 | 64 20 74 68 65 20 70 61 |irst loa|d the pa|
|00002f00| 74 68 20 74 61 62 6c 65 | 20 6f 6e 20 74 68 65 20 |th table| on the |
|00002f10| 43 44 2d 52 4f 4d 20 74 | 6f 20 66 69 6e 64 20 74 |CD-ROM t|o find t|
|00002f20| 68 65 20 6c 6f 63 61 74 | 69 6f 6e 0a 6f 66 20 74 |he locat|ion.of t|
|00002f30| 68 65 20 64 69 72 65 63 | 74 6f 72 79 20 72 65 63 |he direc|tory rec|
|00002f40| 6f 72 64 2e 20 4e 65 78 | 74 20 74 68 65 20 64 69 |ord. Nex|t the di|
|00002f50| 72 65 63 74 6f 72 79 20 | 72 65 63 6f 72 64 20 77 |rectory |record w|
|00002f60| 69 6c 6c 20 62 65 20 6c | 6f 61 64 65 64 0a 74 6f |ill be l|oaded.to|
|00002f70| 20 66 69 6e 64 20 20 74 | 68 65 20 66 69 6c 65 20 | find t|he file |
|00002f80| 6c 6f 63 61 74 69 6f 6e | 2c 20 74 68 65 6e 20 74 |location|, then t|
|00002f90| 68 65 20 62 79 74 65 20 | 6f 66 66 73 65 74 20 69 |he byte |offset i|
|00002fa0| 73 20 63 61 6c 63 75 6c | 61 74 65 64 20 74 6f 0a |s calcul|ated to.|
|00002fb0| 61 6c 6c 6f 77 20 74 68 | 65 20 20 6f 70 65 72 61 |allow th|e opera|
|00002fc0| 74 69 6e 67 20 73 79 73 | 74 65 6d 20 74 6f 20 66 |ting sys|tem to f|
|00002fd0| 69 6e 61 6c 6c 79 20 72 | 65 61 64 20 20 74 68 65 |inally r|ead the|
|00002fe0| 20 72 65 6c 65 76 61 6e | 74 20 73 65 63 74 69 6f | relevan|t sectio|
|00002ff0| 6e 0a 6f 66 20 74 68 65 | 20 20 64 61 74 61 66 69 |n.of the| datafi|
|00003000| 6c 65 2e 20 49 74 20 63 | 61 6e 20 62 65 20 73 65 |le. It c|an be se|
|00003010| 65 6e 20 74 68 65 6e 20 | 74 68 61 74 20 74 68 69 |en then |that thi|
|00003020| 73 20 63 61 6e 20 69 6e | 76 6f 6c 76 65 20 74 68 |s can in|volve th|
|00003030| 72 65 65 0a 64 69 73 63 | 20 61 63 63 65 73 73 65 |ree.disc| accesse|
|00003040| 73 20 69 6e 20 6f 72 64 | 65 72 20 74 6f 20 72 65 |s in ord|er to re|
|00003050| 61 64 20 61 20 66 69 6c | 65 2e 0a 0a 41 6c 6c 20 |ad a fil|e...All |
|00003060| 64 69 72 65 63 74 6f 72 | 79 20 20 72 65 63 6f 72 |director|y recor|
|00003070| 64 73 20 61 6e 64 20 20 | 70 61 74 68 20 74 61 62 |ds and |path tab|
|00003080| 6c 65 73 20 20 61 72 65 | 20 73 74 6f 72 65 64 20 |les are| stored |
|00003090| 69 6e 20 32 4b 20 6c 6f | 67 69 63 61 6c 0a 62 6c |in 2K lo|gical.bl|
|000030a0| 6f 63 6b 73 2e 20 54 68 | 65 20 6f 70 74 69 6d 75 |ocks. Th|e optimu|
|000030b0| 6d 20 20 64 69 72 65 63 | 74 6f 72 79 20 73 69 7a |m direc|tory siz|
|000030c0| 65 2c 20 74 68 65 72 65 | 66 6f 72 65 20 69 73 20 |e, there|fore is |
|000030d0| 72 65 6c 61 74 65 64 20 | 74 6f 20 74 68 69 73 0a |related |to this.|
|000030e0| 62 6c 6f 63 6b 20 73 69 | 7a 65 20 20 20 73 75 63 |block si|ze suc|
|000030f0| 68 20 20 74 68 61 74 20 | 20 20 61 20 6c 69 73 74 |h that | a list|
|00003100| 20 20 6f 66 20 34 30 20 | 20 66 69 6c 65 73 20 28 | of 40 | files (|
|00003110| 74 68 69 73 20 20 69 73 | 20 20 72 6f 75 67 68 6c |this is| roughl|
|00003120| 79 0a 64 65 70 65 6e 64 | 61 6e 74 20 6f 6e 20 74 |y.depend|ant on t|
|00003130| 68 65 20 6c 65 6e 67 74 | 68 20 6f 66 20 74 68 65 |he lengt|h of the|
|00003140| 20 66 69 6c 65 6e 61 6d | 65 73 20 29 20 77 69 6c | filenam|es ) wil|
|00003150| 6c 20 66 69 6c 6c 20 6f | 6e 65 20 62 6c 6f 63 6b |l fill o|ne block|
|00003160| 2e 20 41 0a 6c 69 73 74 | 20 6f 66 20 20 34 32 20 |. A.list| of 42 |
|00003170| 66 69 6c 65 73 20 20 77 | 69 6c 6c 20 63 6f 76 65 |files w|ill cove|
|00003180| 72 20 20 74 77 6f 20 62 | 6c 6f 63 6b 73 20 20 72 |r two b|locks r|
|00003190| 61 74 68 65 72 20 20 69 | 6e 65 66 66 69 63 69 65 |ather i|nefficie|
|000031a0| 6e 74 6c 79 2e 0a 4c 6f | 61 64 69 6e 67 20 61 20 |ntly..Lo|ading a |
|000031b0| 20 6c 69 73 74 20 6f 66 | 20 20 38 30 20 66 69 6c | list of| 80 fil|
|000031c0| 65 73 20 20 77 69 6c 6c | 20 20 74 61 6b 65 20 20 |es will| take |
|000031d0| 61 73 20 20 6c 6f 6e 67 | 20 20 28 32 2f 37 35 20 |as long| (2/75 |
|000031e0| 20 73 65 63 6f 6e 64 0a | 6d 69 6e 69 6d 75 6d 29 | second.|minimum)|
|000031f0| 20 61 73 20 20 61 20 6c | 69 73 74 20 20 6f 66 20 | as a l|ist of |
|00003200| 34 32 20 20 66 69 6c 65 | 73 20 61 6e 64 20 72 65 |42 file|s and re|
|00003210| 71 75 69 72 65 73 20 74 | 68 65 20 73 61 6d 65 20 |quires t|he same |
|00003220| 61 6d 6f 75 6e 74 20 6f | 66 0a 73 65 63 74 6f 72 |amount o|f.sector|
|00003230| 20 63 61 63 68 65 20 20 | 28 20 34 4b 20 20 29 20 | cache |( 4K ) |
|00003240| 2e 20 20 57 69 74 68 69 | 6e 20 61 20 70 61 74 68 |. Withi|n a path|
|00003250| 20 74 61 62 6c 65 20 79 | 6f 75 20 63 61 6e 20 70 | table y|ou can p|
|00003260| 61 63 6b 20 62 65 74 77 | 65 65 6e 0a 31 30 30 20 |ack betw|een.100 |
|00003270| 61 6e 64 20 20 32 30 30 | 20 20 28 20 20 61 67 61 |and 200| ( aga|
|00003280| 69 6e 20 20 64 65 70 65 | 6e 64 69 6e 67 20 20 6f |in depe|nding o|
|00003290| 6e 20 20 6e 61 6d 65 20 | 20 6c 65 6e 67 74 68 20 |n name | length |
|000032a0| 20 29 20 20 64 69 72 65 | 63 74 6f 72 79 0a 72 65 | ) dire|ctory.re|
|000032b0| 66 65 72 65 6e 63 65 73 | 2e 0a 0a 41 6c 6c 20 69 |ferences|...All i|
|000032c0| 73 20 20 6e 6f 74 20 6c | 6f 73 74 20 20 68 6f 77 |s not l|ost how|
|000032d0| 65 76 65 72 2c 20 62 6f | 74 68 20 20 74 68 65 20 |ever, bo|th the |
|000032e0| 70 61 74 68 20 74 61 62 | 6c 65 20 61 6e 64 20 74 |path tab|le and t|
|000032f0| 68 65 20 64 69 72 65 63 | 74 6f 72 79 0a 72 65 63 |he direc|tory.rec|
|00003300| 6f 72 64 73 20 63 61 6e | 20 20 62 65 20 20 62 75 |ords can| be bu|
|00003310| 66 66 65 72 65 64 20 20 | 69 6e 20 20 20 20 27 73 |ffered |in 's|
|00003320| 65 63 74 6f 72 20 20 63 | 61 63 68 65 20 20 6d 65 |ector c|ache me|
|00003330| 6d 6f 72 79 27 20 20 69 | 6e 20 20 6f 6e 65 0a 6f |mory' i|n one.o|
|00003340| 70 65 72 61 74 69 6f 6e | 2c 20 20 61 6c 6c 6f 77 |peration|, allow|
|00003350| 69 6e 67 20 20 20 73 75 | 62 73 65 71 75 65 6e 74 |ing su|bsequent|
|00003360| 20 20 6f 70 65 72 61 74 | 69 6f 6e 73 20 20 20 74 | operat|ions t|
|00003370| 6f 20 20 72 65 71 75 65 | 73 74 20 20 74 68 69 73 |o reque|st this|
|00003380| 0a 69 6e 66 6f 72 6d 61 | 74 69 6f 6e 20 72 61 74 |.informa|tion rat|
|00003390| 68 65 72 20 74 68 61 6e | 20 64 69 73 63 2c 20 74 |her than| disc, t|
|000033a0| 68 61 74 20 69 73 2c 20 | 69 66 20 79 6f 75 20 68 |hat is, |if you h|
|000033b0| 61 76 65 20 64 65 66 69 | 6e 65 64 20 65 6e 6f 75 |ave defi|ned enou|
|000033c0| 67 68 0a 6d 65 6d 6f 72 | 79 2e 20 41 6c 6c 6f 77 |gh.memor|y. Allow|
|000033d0| 69 6e 67 20 20 65 6e 6f | 75 67 68 20 73 65 63 74 |ing eno|ugh sect|
|000033e0| 6f 72 20 20 63 61 63 68 | 65 20 74 6f 20 20 63 6f |or cach|e to co|
|000033f0| 70 65 20 77 69 74 68 20 | 20 6c 6f 61 64 69 6e 67 |pe with | loading|
|00003400| 20 74 68 65 0a 70 61 74 | 68 20 74 61 62 6c 65 20 | the.pat|h table |
|00003410| 20 69 73 20 76 65 72 79 | 20 20 65 66 66 69 63 69 | is very| effici|
|00003420| 65 6e 74 2e 20 41 6c 6c | 20 66 75 74 75 72 65 20 |ent. All| future |
|00003430| 72 65 71 75 65 73 74 73 | 20 66 6f 72 20 64 69 72 |requests| for dir|
|00003440| 65 63 74 6f 72 79 0a 6c | 6f 63 61 74 69 6f 6e 73 |ectory.l|ocations|
|00003450| 20 77 69 6c 6c 20 74 68 | 65 6e 20 62 65 20 68 61 | will th|en be ha|
|00003460| 6e 64 6c 65 64 20 77 69 | 74 68 69 6e 20 73 65 63 |ndled wi|thin sec|
|00003470| 74 6f 72 20 63 61 63 68 | 65 2e 0a 0a 49 6d 70 72 |tor cach|e...Impr|
|00003480| 6f 76 65 6d 65 6e 74 73 | 20 69 6e 20 20 61 63 63 |ovements| in acc|
|00003490| 65 73 73 20 74 69 6d 65 | 20 20 63 61 6e 20 62 65 |ess time| can be|
|000034a0| 20 20 6d 61 64 65 20 62 | 79 20 67 72 6f 75 70 69 | made b|y groupi|
|000034b0| 6e 67 20 66 69 6c 65 73 | 20 69 6e 20 61 0a 73 69 |ng files| in a.si|
|000034c0| 6e 67 6c 65 20 64 69 72 | 65 63 74 6f 72 79 20 20 |ngle dir|ectory |
|000034d0| 74 68 61 74 20 61 72 65 | 20 20 6f 70 65 6e 65 64 |that are| opened|
|000034e0| 20 74 6f 67 65 74 68 65 | 72 20 20 28 6f 72 20 73 | togethe|r (or s|
|000034f0| 65 71 75 65 6e 74 69 61 | 6c 6c 79 20 20 29 2e 0a |equentia|lly )..|
|00003500| 59 6f 75 72 20 6f 70 65 | 72 61 74 69 6e 67 20 20 |Your ope|rating |
|00003510| 73 79 73 74 65 6d 20 77 | 69 6c 6c 20 20 74 68 65 |system w|ill the|
|00003520| 6e 20 72 65 66 65 72 65 | 6e 63 65 20 20 74 68 65 |n refere|nce the|
|00003530| 20 64 69 73 63 20 20 63 | 61 63 68 65 20 77 68 65 | disc c|ache whe|
|00003540| 6e 0a 6f 70 65 6e 69 6e | 67 20 61 20 20 66 69 6c |n.openin|g a fil|
|00003550| 65 20 72 61 74 68 65 72 | 20 20 74 68 61 6e 20 20 |e rather| than |
|00003560| 61 63 63 65 73 73 69 6e | 67 20 20 74 68 65 20 20 |accessin|g the |
|00003570| 64 69 73 63 2e 20 20 49 | 74 20 20 69 73 20 20 61 |disc. I|t is a|
|00003580| 6c 73 6f 0a 70 6f 73 73 | 69 62 6c 65 20 74 6f 20 |lso.poss|ible to |
|00003590| 20 70 65 72 66 6f 72 6d | 20 20 61 20 20 27 64 75 | perform| a 'du|
|000035a0| 6d 6d 79 20 20 61 63 63 | 65 73 73 27 20 20 74 6f |mmy acc|ess' to|
|000035b0| 20 20 61 20 20 66 69 6c | 65 20 20 77 68 65 6e 20 | a fil|e when |
|000035c0| 20 79 6f 75 72 0a 70 72 | 6f 67 72 61 6d 6d 65 20 | your.pr|ogramme |
|000035d0| 69 73 20 20 73 69 74 74 | 69 6e 67 20 69 64 6c 65 |is sitt|ing idle|
|000035e0| 20 20 73 6f 20 20 74 68 | 61 74 20 20 74 68 65 20 | so th|at the |
|000035f0| 20 6e 65 78 74 20 20 66 | 69 6c 65 20 20 61 63 63 | next f|ile acc|
|00003600| 65 73 73 20 20 69 73 0a | 70 72 65 70 61 72 65 64 |ess is.|prepared|
|00003610| 20 62 79 20 61 6c 72 65 | 61 64 79 20 6c 6f 61 64 | by alre|ady load|
|00003620| 69 6e 67 20 69 6e 20 74 | 68 65 20 72 65 6c 65 76 |ing in t|he relev|
|00003630| 61 6e 74 20 69 6e 66 6f | 72 6d 61 74 69 6f 6e 2e |ant info|rmation.|
|00003640| 0a 0a 42 75 66 66 65 72 | 69 6e 67 20 61 6e 64 20 |..Buffer|ing and |
|00003650| 4d 53 43 44 45 58 0a 0a | 55 73 69 6e 67 20 4d 53 |MSCDEX..|Using MS|
|00003660| 43 44 45 58 20 20 79 6f | 75 20 63 61 6e 20 64 65 |CDEX yo|u can de|
|00003670| 66 69 6e 65 20 74 68 65 | 20 64 69 73 63 20 63 61 |fine the| disc ca|
|00003680| 63 68 65 20 6d 65 6d 6f | 72 79 20 75 73 69 6e 67 |che memo|ry using|
|00003690| 20 74 68 65 20 27 2f 4d | 27 0a 6f 70 74 69 6f 6e | the '/M|'.option|
|000036a0| 2e 20 49 66 20 79 6f 75 | 72 20 64 69 72 65 63 74 |. If you|r direct|
|000036b0| 6f 72 79 20 63 6f 76 65 | 72 73 20 31 30 20 73 65 |ory cove|rs 10 se|
|000036c0| 63 74 6f 72 73 20 61 6e | 64 20 79 6f 75 20 6f 6e |ctors an|d you on|
|000036d0| 6c 79 20 64 65 66 69 6e | 65 20 35 0a 73 65 63 74 |ly defin|e 5.sect|
|000036e0| 6f 72 20 63 61 63 68 65 | 20 20 62 6c 6f 63 6b 73 |or cache| blocks|
|000036f0| 20 74 68 65 6e 20 79 6f | 75 20 77 69 6c 6c 20 65 | then yo|u will e|
|00003700| 6e 64 20 75 70 20 72 65 | 6c 6f 61 64 69 6e 67 20 |nd up re|loading |
|00003710| 74 68 65 20 64 69 72 65 | 63 74 6f 72 79 0a 65 76 |the dire|ctory.ev|
|00003720| 65 72 79 20 74 69 6d 65 | 20 20 79 6f 75 20 77 61 |ery time| you wa|
|00003730| 6e 74 20 20 74 6f 20 6f | 70 65 6e 20 61 20 66 69 |nt to o|pen a fi|
|00003740| 6c 65 20 77 68 69 63 68 | 20 63 61 6e 20 63 61 75 |le which| can cau|
|00003750| 73 65 20 76 61 73 74 20 | 61 6d 6f 75 6e 74 73 0a |se vast |amounts.|
|00003760| 6f 66 20 74 69 6d 65 20 | 20 74 6f 20 62 65 20 20 |of time | to be |
|00003770| 65 78 70 65 6e 64 65 64 | 20 68 61 63 6b 69 6e 67 |expended| hacking|
|00003780| 20 20 74 68 65 20 43 44 | 2d 52 4f 4d 20 20 64 69 | the CD|-ROM di|
|00003790| 73 63 2e 20 20 44 65 66 | 69 6e 65 20 20 79 6f 75 |sc. Def|ine you|
|000037a0| 72 0a 73 65 63 74 6f 72 | 20 63 61 63 68 69 6e 67 |r.sector| caching|
|000037b0| 20 20 74 6f 20 62 65 20 | 20 74 68 65 20 73 61 6d | to be | the sam|
|000037c0| 65 20 20 61 73 20 74 68 | 65 20 20 6c 61 72 67 65 |e as th|e large|
|000037d0| 73 74 20 64 69 72 65 63 | 74 6f 72 79 20 72 65 63 |st direc|tory rec|
|000037e0| 6f 72 64 0a 70 6c 75 73 | 20 74 77 6f 20 20 73 65 |ord.plus| two se|
|000037f0| 63 74 6f 72 73 20 28 20 | 20 74 68 65 20 6c 61 73 |ctors ( | the las|
|00003800| 74 20 20 74 77 6f 20 61 | 72 65 20 75 73 65 64 20 |t two a|re used |
|00003810| 62 79 20 4d 53 43 44 45 | 58 20 66 6f 72 20 69 74 |by MSCDE|X for it|
|00003820| 73 20 6f 77 6e 0a 70 75 | 72 70 6f 73 65 73 29 2e |s own.pu|rposes).|
|00003830| 20 41 20 20 73 69 6d 70 | 6c 65 20 63 61 6c 63 75 | A simp|le calcu|
|00003840| 6c 61 74 69 6f 6e 20 69 | 73 20 73 68 6f 77 6e 20 |lation i|s shown |
|00003850| 68 65 72 65 20 74 68 61 | 74 20 61 6c 6c 6f 77 73 |here tha|t allows|
|00003860| 20 79 6f 75 20 74 6f 0a | 6d 61 6b 65 20 61 20 72 | you to.|make a r|
|00003870| 65 63 6f 6d 6d 65 6e 64 | 61 74 69 6f 6e 20 74 6f |ecommend|ation to|
|00003880| 20 79 6f 75 72 20 43 44 | 2d 52 4f 4d 20 75 73 65 | your CD|-ROM use|
|00003890| 72 73 2e 0a 0a 20 20 20 | 20 20 2f 4d 20 3a 20 20 |rs... | /M : |
|000038a0| 28 6c 61 72 67 65 73 74 | 20 6e 75 6d 62 65 72 20 |(largest| number |
|000038b0| 6f 66 20 66 69 6c 65 73 | 20 69 6e 20 61 20 64 69 |of files| in a di|
|000038c0| 72 65 63 74 6f 72 79 20 | 2f 20 34 30 20 29 20 20 |rectory |/ 40 ) |
|000038d0| 20 2b 0a 20 20 20 20 20 | 20 20 20 20 20 20 28 6e | +. | (n|
|000038e0| 75 6d 62 65 72 20 6f 66 | 20 64 69 72 65 63 74 6f |umber of| directo|
|000038f0| 72 79 20 66 69 6c 65 73 | 20 2f 20 31 30 30 20 29 |ry files| / 100 )|
|00003900| 20 2b 20 34 0a 0a 41 73 | 20 61 20 20 67 65 6e 65 | + 4..As| a gene|
|00003910| 72 61 6c 20 20 20 72 75 | 6c 65 20 74 68 65 6e 2c |ral ru|le then,|
|00003920| 20 20 69 74 20 69 73 20 | 20 62 65 74 74 65 72 20 | it is | better |
|00003930| 74 6f 20 20 6b 65 65 70 | 20 79 6f 75 72 20 64 69 |to keep| your di|
|00003940| 72 65 63 74 6f 72 79 0a | 73 69 7a 65 73 20 73 6d |rectory.|sizes sm|
|00003950| 61 6c 6c 20 20 61 6e 64 | 20 61 20 20 6d 75 6c 74 |all and| a mult|
|00003960| 69 70 6c 65 20 6f 66 20 | 20 34 30 20 66 69 6c 65 |iple of | 40 file|
|00003970| 73 20 20 61 6e 64 20 20 | 61 6c 6c 6f 77 20 20 73 |s and |allow s|
|00003980| 75 66 66 69 63 69 65 6e | 74 0a 62 75 66 66 65 72 |ufficien|t.buffer|
|00003990| 69 6e 67 20 74 6f 20 6b | 65 65 70 20 64 6f 77 6e |ing to k|eep down|
|000039a0| 20 74 68 65 20 6e 75 6d | 62 65 72 20 6f 66 20 64 | the num|ber of d|
|000039b0| 69 73 63 20 61 63 63 65 | 73 73 65 73 20 2e 0a 0a |isc acce|sses ...|
|000039c0| 54 68 65 20 6c 61 73 74 | 20 20 68 69 6e 74 20 69 |The last| hint i|
|000039d0| 73 20 27 64 6f 20 6e 6f | 74 20 72 65 6c 79 20 6f |s 'do no|t rely o|
|000039e0| 6e 20 74 68 65 20 6f 70 | 65 72 61 74 69 6e 67 20 |n the op|erating |
|000039f0| 73 79 73 74 65 6d 20 74 | 6f 20 64 6f 20 20 74 68 |system t|o do th|
|00003a00| 65 0a 66 69 6c 65 20 73 | 65 61 72 63 68 69 6e 67 |e.file s|earching|
|00003a10| 20 66 6f 72 20 79 6f 75 | 27 2e 20 49 74 20 69 73 | for you|'. It is|
|00003a20| 20 66 61 72 20 62 65 74 | 74 65 72 20 74 6f 20 67 | far bet|ter to g|
|00003a30| 72 6f 75 70 20 79 6f 75 | 72 20 64 61 74 61 20 69 |roup you|r data i|
|00003a40| 6e 74 6f 0a 61 20 66 65 | 77 20 20 62 69 67 20 66 |nto.a fe|w big f|
|00003a50| 69 6c 65 73 20 20 61 6e | 64 20 75 73 65 20 20 79 |iles an|d use y|
|00003a60| 6f 75 72 20 6f 77 6e 20 | 20 69 6e 64 65 78 69 6e |our own | indexin|
|00003a70| 67 20 73 79 73 74 65 6d | 20 20 74 6f 20 66 69 6e |g system| to fin|
|00003a80| 64 20 74 68 65 0a 73 65 | 63 74 69 6f 6e 20 6f 66 |d the.se|ction of|
|00003a90| 20 20 64 61 74 61 20 74 | 68 61 74 20 79 6f 75 20 | data t|hat you |
|00003aa0| 6e 65 65 64 20 74 68 61 | 6e 20 75 73 69 6e 67 20 |need tha|n using |
|00003ab0| 74 68 65 20 6f 70 65 72 | 61 74 69 6e 67 20 73 79 |the oper|ating sy|
|00003ac0| 73 74 65 6d 2e 0a 0a 46 | 69 6c 65 20 53 74 72 75 |stem...F|ile Stru|
|00003ad0| 63 74 75 72 65 73 0a 0a | 49 74 20 69 73 20 20 70 |ctures..|It is p|
|00003ae0| 6f 73 73 69 62 6c 65 20 | 74 6f 20 20 75 73 65 20 |ossible |to use |
|00003af0| 6c 6f 67 69 63 61 6c 20 | 62 6c 6f 63 6b 20 73 69 |logical |block si|
|00003b00| 7a 65 73 20 6f 66 20 62 | 65 74 77 65 65 6e 20 30 |zes of b|etween 0|
|00003b10| 2e 35 4b 20 74 6f 20 32 | 4b 0a 6f 6e 20 61 20 20 |.5K to 2|K.on a |
|00003b20| 43 44 2d 52 4f 4d 2e 20 | 55 73 75 61 6c 6c 79 20 |CD-ROM. |Usually |
|00003b30| 20 74 68 69 73 20 69 73 | 20 20 64 6f 6e 65 20 77 | this is| done w|
|00003b40| 68 65 6e 20 79 6f 75 20 | 68 61 76 65 20 6d 61 6e |hen you |have man|
|00003b50| 79 20 66 69 6c 65 73 20 | 61 6c 6c 0a 6c 65 73 73 |y files |all.less|
|00003b60| 20 74 68 61 6e 20 32 4b | 20 69 6e 20 73 69 7a 65 | than 2K| in size|
|00003b70| 2e 20 59 6f 75 20 63 61 | 6e 20 66 6f 72 20 69 6e |. You ca|n for in|
|00003b80| 73 74 61 6e 63 65 20 68 | 61 6c 66 20 74 68 65 20 |stance h|alf the |
|00003b90| 63 61 70 61 63 69 74 79 | 20 6f 66 20 61 0a 43 44 |capacity| of a.CD|
|00003ba0| 2d 52 4f 4d 20 64 69 73 | 63 20 20 69 66 20 61 6c |-ROM dis|c if al|
|00003bb0| 6c 20 20 79 6f 75 72 20 | 66 69 6c 65 73 20 20 61 |l your |files a|
|00003bc0| 72 65 20 31 4b 20 20 69 | 6e 20 73 69 7a 65 20 20 |re 1K i|n size |
|00003bd0| 61 6e 64 20 61 6c 6c 20 | 6f 66 20 79 6f 75 72 0a |and all |of your.|
|00003be0| 6c 6f 67 69 63 61 6c 20 | 62 6c 6f 63 6b 73 20 20 |logical |blocks |
|00003bf0| 61 72 65 20 32 4b 20 20 | 69 6e 20 73 69 7a 65 2e |are 2K |in size.|
|00003c00| 20 20 57 68 61 74 65 76 | 65 72 20 69 73 20 20 64 | Whatev|er is d|
|00003c10| 65 66 69 6e 65 64 20 74 | 68 65 20 43 44 2d 52 4f |efined t|he CD-RO|
|00003c20| 4d 0a 68 61 72 64 77 61 | 72 65 20 77 69 6c 6c 20 |M.hardwa|re will |
|00003c30| 20 61 64 64 72 65 73 73 | 20 61 20 32 4b 20 62 6c | address| a 2K bl|
|00003c40| 6f 63 6b 20 6d 69 6e 69 | 6d 75 6d 2c 20 73 6f 20 |ock mini|mum, so |
|00003c50| 75 6e 6c 65 73 73 20 79 | 6f 75 20 63 61 6e 20 56 |unless y|ou can V|
|00003c60| 45 52 59 0a 72 65 6c 69 | 61 62 6c 79 20 70 72 65 |ERY.reli|ably pre|
|00003c70| 64 69 63 74 20 20 74 68 | 65 20 61 64 6a 61 63 65 |dict th|e adjace|
|00003c80| 6e 74 20 66 69 6c 65 73 | 20 74 6f 20 62 65 20 6f |nt files| to be o|
|00003c90| 70 65 6e 65 64 20 77 69 | 74 68 69 6e 20 74 68 65 |pened wi|thin the|
|00003ca0| 20 73 61 6d 65 0a 62 6c | 6f 63 6b 20 74 68 69 73 | same.bl|ock this|
|00003cb0| 20 20 6d 65 74 68 6f 64 | 20 6f 66 20 20 64 61 74 | method| of dat|
|00003cc0| 61 20 73 74 6f 72 61 67 | 65 20 70 72 6f 76 65 73 |a storag|e proves|
|00003cd0| 20 72 61 74 68 65 72 20 | 69 6e 65 66 66 69 63 69 | rather |ineffici|
|00003ce0| 65 6e 74 2e 20 49 74 0a | 69 73 20 66 61 72 20 62 |ent. It.|is far b|
|00003cf0| 65 74 74 65 72 20 74 6f | 20 63 6f 6e 63 61 74 65 |etter to| concate|
|00003d00| 6e 61 74 65 20 79 6f 75 | 72 20 73 6d 61 6c 6c 20 |nate you|r small |
|00003d10| 66 69 6c 65 73 20 69 6e | 74 6f 20 6f 6e 65 20 6c |files in|to one l|
|00003d20| 61 72 67 65 20 66 69 6c | 65 0a 61 6e 64 20 68 6f |arge fil|e.and ho|
|00003d30| 6c 64 20 61 6e 20 69 6e | 64 65 78 20 6f 66 20 62 |ld an in|dex of b|
|00003d40| 6c 6f 63 6b 20 6f 66 66 | 73 65 74 73 2e 0a 0a 44 |lock off|sets...D|
|00003d50| 72 69 76 65 20 50 65 72 | 66 6f 72 6d 61 6e 63 65 |rive Per|formance|
|00003d60| 0a 0a 4e 65 76 65 72 20 | 72 65 6c 79 20 20 6f 6e |..Never |rely on|
|00003d70| 20 6f 62 74 61 69 6e 69 | 6e 67 20 20 74 68 65 20 | obtaini|ng the |
|00003d80| 74 68 65 6f 72 65 74 69 | 63 61 6c 20 20 20 64 61 |theoreti|cal da|
|00003d90| 74 61 20 74 72 61 6e 73 | 66 65 72 20 72 61 74 65 |ta trans|fer rate|
|00003da0| 20 6f 66 0a 31 35 30 4b | 20 70 65 72 20 20 73 65 | of.150K| per se|
|00003db0| 63 6f 6e 64 2e 20 50 69 | 70 69 6e 67 20 20 66 69 |cond. Pi|ping fi|
|00003dc0| 6c 65 73 20 74 68 72 6f | 75 67 68 20 20 74 68 65 |les thro|ugh the|
|00003dd0| 20 2e 53 59 53 20 64 72 | 69 76 65 72 20 2c 20 4d | .SYS dr|iver , M|
|00003de0| 53 43 44 45 58 0a 61 6e | 64 20 4d 53 2d 44 4f 53 |SCDEX.an|d MS-DOS|
|00003df0| 20 77 69 6c 6c 20 73 6c | 6f 77 20 74 68 69 6e 67 | will sl|ow thing|
|00003e00| 73 20 64 6f 77 6e 2e 20 | 54 68 69 73 20 63 61 6e |s down. |This can|
|00003e10| 20 62 65 20 61 20 6d 61 | 6a 6f 72 20 66 61 63 74 | be a ma|jor fact|
|00003e20| 6f 72 20 77 68 65 6e 0a | 61 64 64 72 65 73 73 69 |or when.|addressi|
|00003e30| 6e 67 20 20 20 6d 65 64 | 69 75 6d 20 73 69 7a 65 |ng med|ium size|
|00003e40| 20 20 66 69 6c 65 73 20 | 6c 69 6b 65 20 20 69 6d | files |like im|
|00003e50| 61 67 65 73 2e 20 54 68 | 65 20 20 6f 6e 6c 79 20 |ages. Th|e only |
|00003e60| 72 65 61 6c 20 20 77 61 | 79 0a 61 72 6f 75 6e 64 |real wa|y.around|
|00003e70| 20 74 68 69 73 20 20 70 | 72 6f 62 6c 65 6d 20 20 | this p|roblem |
|00003e80| 20 69 73 20 74 6f 20 20 | 62 79 70 61 73 73 20 61 | is to |bypass a|
|00003e90| 6c 6c 20 6f 66 20 74 68 | 65 73 65 20 6f 70 65 72 |ll of th|ese oper|
|00003ea0| 61 74 69 6f 6e 73 20 61 | 6e 64 0a 61 6c 6c 6f 77 |ations a|nd.allow|
|00003eb0| 20 79 6f 75 72 20 20 73 | 6f 66 74 77 61 72 65 20 | your s|oftware |
|00003ec0| 20 74 6f 20 61 64 64 72 | 65 73 73 20 74 68 65 20 | to addr|ess the |
|00003ed0| 2e 53 59 53 20 64 72 69 | 76 65 72 20 64 69 72 65 |.SYS dri|ver dire|
|00003ee0| 63 74 2e 20 54 68 69 73 | 20 63 61 6e 0a 62 65 20 |ct. This| can.be |
|00003ef0| 61 6e 20 20 61 72 64 75 | 6f 75 73 20 74 61 73 6b |an ardu|ous task|
|00003f00| 2c 20 20 6d 6f 73 74 20 | 64 65 76 65 6c 6f 70 65 |, most |develope|
|00003f10| 72 73 20 6f 70 74 20 66 | 6f 72 20 66 69 6c 65 20 |rs opt f|or file |
|00003f20| 63 6f 6d 70 72 65 73 73 | 69 6f 6e 20 74 6f 0a 63 |compress|ion to.c|
|00003f30| 75 74 20 64 6f 77 6e 20 | 74 68 65 20 69 6d 61 67 |ut down |the imag|
|00003f40| 65 20 72 65 74 72 69 65 | 76 61 6c 20 74 69 6d 65 |e retrie|val time|
|00003f50| 0a 0a 57 65 20 68 61 76 | 65 20 20 6d 65 6e 74 69 |..We hav|e menti|
|00003f60| 6f 6e 65 64 20 20 61 6c | 72 65 61 64 79 20 20 74 |oned al|ready t|
|00003f70| 68 61 74 20 20 74 68 65 | 20 20 73 65 63 74 6f 72 |hat the| sector|
|00003f80| 20 20 63 61 63 68 65 20 | 20 69 73 20 20 20 20 76 | cache | is v|
|00003f90| 65 72 79 0a 69 6d 70 6f | 72 74 61 6e 74 20 77 68 |ery.impo|rtant wh|
|00003fa0| 65 6e 20 20 77 65 20 61 | 72 65 20 20 63 6f 6e 73 |en we a|re cons|
|00003fb0| 69 64 65 72 69 6e 67 20 | 20 66 69 6c 65 20 20 61 |idering | file a|
|00003fc0| 63 63 65 73 73 20 20 74 | 69 6d 65 73 2e 20 20 41 |ccess t|imes. A|
|00003fd0| 20 20 66 65 77 0a 6d 61 | 6e 75 66 61 63 74 75 72 | few.ma|nufactur|
|00003fe0| 65 72 73 20 68 61 76 65 | 20 20 69 6e 73 74 61 6c |ers have| instal|
|00003ff0| 6c 65 64 20 20 61 20 20 | 63 6f 6e 73 69 64 65 72 |led a |consider|
|00004000| 61 62 6c 65 20 20 61 6d | 6f 75 6e 74 20 20 6f 66 |able am|ount of|
|00004010| 20 20 63 61 63 68 65 0a | 6d 65 6d 6f 72 79 20 77 | cache.|memory w|
|00004020| 69 74 68 69 6e 20 74 68 | 65 20 43 44 2d 52 4f 4d |ithin th|e CD-ROM|
|00004030| 20 64 72 69 76 65 20 68 | 61 72 64 77 61 72 65 2e | drive h|ardware.|
|00004040| 20 54 68 69 73 20 61 6c | 6c 6f 77 73 20 61 20 72 | This al|lows a r|
|00004050| 65 71 75 65 73 74 20 74 | 6f 0a 72 65 61 64 20 61 |equest t|o.read a|
|00004060| 20 20 70 61 74 68 20 74 | 61 62 6c 65 20 20 66 72 | path t|able fr|
|00004070| 6f 6d 20 74 68 65 20 63 | 6f 6d 70 75 74 65 72 20 |om the c|omputer |
|00004080| 74 6f 20 65 78 74 72 61 | 63 74 20 64 61 74 61 20 |to extra|ct data |
|00004090| 72 61 74 68 65 72 20 74 | 68 61 6e 0a 61 6e 6f 74 |rather t|han.anot|
|000040a0| 68 65 72 20 61 63 63 65 | 73 73 20 20 74 6f 20 74 |her acce|ss to t|
|000040b0| 68 65 20 20 64 69 73 63 | 2e 20 54 68 69 73 20 20 |he disc|. This |
|000040c0| 63 61 6e 20 20 72 65 73 | 75 6c 74 20 20 69 6e 20 |can res|ult in |
|000040d0| 20 63 6f 6e 73 69 64 65 | 72 61 62 6c 65 0a 61 70 | conside|rable.ap|
|000040e0| 70 61 72 65 6e 74 20 73 | 70 65 65 64 20 69 6e 63 |parent s|peed inc|
|000040f0| 72 65 61 73 65 20 69 6e | 20 79 6f 75 72 20 43 44 |rease in| your CD|
|00004100| 2d 52 4f 4d 20 70 72 6f | 64 75 63 74 2e 0a 0a 42 |-ROM pro|duct...B|
|00004110| 45 20 57 41 52 4e 45 44 | 2c 20 20 69 74 20 69 73 |E WARNED|, it is|
|00004120| 20 20 6e 6f 74 20 75 6e | 6b 6e 6f 77 6e 20 66 6f | not un|known fo|
|00004130| 72 20 61 20 64 65 76 65 | 6c 6f 70 65 72 20 74 6f |r a deve|loper to|
|00004140| 20 63 72 65 61 74 65 20 | 61 20 43 44 2d 52 4f 4d | create |a CD-ROM|
|00004150| 0a 70 72 6f 67 72 61 6d | 6d 65 20 74 68 61 74 20 |.program|me that |
|00004160| 20 69 73 20 6f 70 74 69 | 6d 69 73 65 64 20 66 6f | is opti|mised fo|
|00004170| 72 20 61 20 70 61 72 74 | 69 63 75 6c 61 72 20 64 |r a part|icular d|
|00004180| 72 69 76 65 2c 20 6f 6e | 6c 79 20 74 6f 20 66 69 |rive, on|ly to fi|
|00004190| 6e 64 0a 74 68 61 74 20 | 69 74 20 77 6f 72 6b 73 |nd.that |it works|
|000041a0| 20 31 30 30 20 74 69 6d | 65 73 20 73 6c 6f 77 65 | 100 tim|es slowe|
|000041b0| 72 20 6f 6e 20 6f 74 68 | 65 72 20 6d 61 6e 75 66 |r on oth|er manuf|
|000041c0| 61 63 74 75 72 65 72 73 | 20 64 72 69 76 65 73 2e |acturers| drives.|
|000041d0| 0a 0a 41 73 20 77 65 20 | 20 61 72 65 20 64 65 61 |..As we | are dea|
|000041e0| 6c 69 6e 67 20 77 69 74 | 68 20 72 65 6c 61 74 69 |ling wit|h relati|
|000041f0| 76 65 6c 79 20 73 6c 6f | 77 20 68 61 72 64 77 61 |vely slo|w hardwa|
|00004200| 72 65 2c 20 6b 65 65 70 | 20 74 68 65 20 6e 75 6d |re, keep| the num|
|00004210| 62 65 72 0a 6f 66 20 73 | 65 65 6b 73 20 74 6f 20 |ber.of s|eeks to |
|00004220| 79 6f 75 72 20 64 61 74 | 61 20 66 69 6c 65 20 74 |your dat|a file t|
|00004230| 6f 20 61 20 6d 69 6e 69 | 6d 75 6d 2e 20 55 73 65 |o a mini|mum. Use|
|00004240| 20 69 6e 64 65 78 69 6e | 67 20 61 6e 64 20 68 61 | indexin|g and ha|
|00004250| 73 68 69 6e 67 0a 74 61 | 62 6c 65 73 20 77 68 69 |shing.ta|bles whi|
|00004260| 63 68 20 6c 65 74 20 79 | 6f 75 20 61 70 70 72 6f |ch let y|ou appro|
|00004270| 61 63 68 20 79 6f 75 72 | 20 64 61 74 61 20 69 6e |ach your| data in|
|00004280| 20 74 68 65 20 6d 73 74 | 20 64 69 72 65 63 74 20 | the mst| direct |
|00004290| 6d 61 6e 6e 65 72 2e 0a | 0a 49 74 20 69 73 20 20 |manner..|.It is |
|000042a0| 6f 62 76 69 6f 75 73 6c | 79 20 69 6e 65 66 66 69 |obviousl|y ineffi|
|000042b0| 63 69 65 6e 74 20 74 6f | 20 73 77 69 6e 67 20 66 |cient to| swing f|
|000042c0| 72 6f 6d 20 6f 6e 65 20 | 65 6e 64 20 6f 66 20 74 |rom one |end of t|
|000042d0| 68 65 20 64 69 73 63 20 | 74 6f 0a 61 6e 6f 74 68 |he disc |to.anoth|
|000042e0| 65 72 20 61 6e 64 20 20 | 62 61 63 6b 20 61 67 61 |er and |back aga|
|000042f0| 69 6e 2e 20 20 74 72 79 | 20 74 6f 20 20 64 6f 20 |in. try| to do |
|00004300| 73 6f 6d 65 20 61 63 63 | 65 73 73 20 61 6e 61 6c |some acc|ess anal|
|00004310| 79 73 69 73 20 6f 6e 20 | 79 6f 75 72 0a 64 61 74 |ysis on |your.dat|
|00004320| 61 62 61 73 65 20 61 6e | 64 20 20 73 74 6f 72 65 |abase an|d store|
|00004330| 20 73 65 71 75 65 6e 74 | 69 61 6c 6c 79 20 20 61 | sequent|ially a|
|00004340| 63 63 65 73 73 65 64 20 | 64 61 74 61 20 62 6c 6f |ccessed |data blo|
|00004350| 63 6b 73 20 77 69 74 68 | 69 6e 20 74 68 65 0a 73 |cks with|in the.s|
|00004360| 61 6d 65 20 76 69 63 69 | 6e 69 74 79 2e 20 53 6f |ame vici|nity. So|
|00004370| 6d 65 74 69 6d 65 73 20 | 69 74 20 69 73 20 65 76 |metimes |it is ev|
|00004380| 65 6e 20 62 65 74 74 65 | 72 20 74 6f 20 64 75 70 |en bette|r to dup|
|00004390| 6c 69 63 61 74 65 20 73 | 6f 6d 65 20 64 61 74 61 |licate s|ome data|
|000043a0| 0a 69 6e 20 6f 72 64 65 | 72 20 20 74 68 61 74 20 |.in orde|r that |
|000043b0| 74 68 65 20 20 73 65 65 | 6b 20 64 69 73 74 61 6e |the see|k distan|
|000043c0| 63 65 73 20 20 61 72 65 | 20 6b 65 70 74 20 20 74 |ces are| kept t|
|000043d0| 6f 20 61 20 6d 69 6e 69 | 6d 75 6d 20 61 74 20 74 |o a mini|mum at t|
|000043e0| 68 65 0a 65 78 70 65 6e | 73 65 20 6f 66 20 61 20 |he.expen|se of a |
|000043f0| 6c 69 74 74 6c 65 20 6d | 6f 72 65 20 64 69 73 63 |little m|ore disc|
|00004400| 20 65 73 74 61 74 65 2e | 0a 0a 41 6c 6c 20 64 72 | estate.|..All dr|
|00004410| 69 76 65 20 20 6d 61 6e | 75 66 61 63 74 75 72 65 |ive man|ufacture|
|00004420| 72 73 20 68 61 76 65 20 | 20 74 68 65 69 72 20 6f |rs have | their o|
|00004430| 77 6e 20 73 65 65 6b 69 | 6e 67 20 61 6c 67 6f 72 |wn seeki|ng algor|
|00004440| 69 74 68 6d 73 20 77 68 | 69 63 68 0a 65 66 66 65 |ithms wh|ich.effe|
|00004450| 63 74 20 68 6f 77 20 20 | 74 68 65 20 64 72 69 76 |ct how |the driv|
|00004460| 65 20 20 70 65 72 66 6f | 72 6d 73 20 28 73 65 65 |e perfo|rms (see|
|00004470| 20 20 70 6c 6f 74 73 20 | 61 74 74 61 63 68 65 64 | plots |attached|
|00004480| 29 20 20 2e 20 54 68 65 | 72 65 20 69 73 0a 75 73 |) . The|re is.us|
|00004490| 75 61 6c 6c 79 20 6c 69 | 74 74 6c 65 20 70 6f 69 |ually li|ttle poi|
|000044a0| 6e 74 20 69 6e 20 6f 70 | 74 69 6d 69 73 69 6e 67 |nt in op|timising|
|000044b0| 20 79 6f 75 72 20 6c 6f | 6e 67 20 73 65 65 6b 20 | your lo|ng seek |
|000044c0| 6a 75 6d 70 73 20 74 6f | 20 6d 65 64 69 75 6d 0a |jumps to| medium.|
|000044d0| 73 65 65 6b 20 6a 75 6d | 70 73 2c 20 79 6f 75 20 |seek jum|ps, you |
|000044e0| 77 69 6c 6c 20 67 61 69 | 6e 20 72 65 6c 61 74 69 |will gai|n relati|
|000044f0| 76 65 6c 79 20 6c 69 74 | 74 6c 65 20 69 6d 70 72 |vely lit|tle impr|
|00004500| 6f 76 65 6d 65 6e 74 20 | 69 6e 20 73 70 65 65 64 |ovement |in speed|
|00004510| 2e 0a 49 66 20 79 6f 75 | 20 20 63 61 6e 20 6f 70 |..If you| can op|
|00004520| 74 69 6d 69 73 65 20 20 | 74 6f 20 73 68 6f 72 74 |timise |to short|
|00004530| 20 20 73 65 65 6b 20 6a | 75 6d 70 73 2c 20 68 6f | seek j|umps, ho|
|00004540| 77 65 76 65 72 2c 20 79 | 6f 75 20 6d 61 79 20 77 |wever, y|ou may w|
|00004550| 65 6c 6c 0a 67 65 74 20 | 61 20 67 72 65 61 74 20 |ell.get |a great |
|00004560| 69 6d 70 72 6f 76 65 6d | 65 6e 74 20 69 6e 20 64 |improvem|ent in d|
|00004570| 61 74 61 20 61 63 63 65 | 73 73 69 6e 67 2e 0a 0a |ata acce|ssing...|
|00004580| 44 69 73 63 20 51 75 61 | 6c 69 74 79 0a 0a 49 74 |Disc Qua|lity..It|
|00004590| 20 69 73 20 20 61 20 73 | 75 72 70 72 69 73 65 20 | is a s|urprise |
|000045a0| 20 74 6f 20 6d 6f 73 74 | 20 70 65 6f 70 6c 65 20 | to most| people |
|000045b0| 20 74 6f 20 66 69 6e 64 | 20 74 68 61 74 20 43 44 | to find| that CD|
|000045c0| 20 71 75 61 6c 69 74 79 | 20 63 61 6e 20 62 65 0a | quality| can be.|
|000045d0| 72 65 6c 61 74 65 64 20 | 74 6f 20 20 74 68 65 20 |related |to the |
|000045e0| 72 65 74 72 69 65 76 61 | 6c 20 20 74 69 6d 65 2e |retrieva|l time.|
|000045f0| 20 59 6f 75 20 73 68 6f | 75 6c 64 20 66 69 6e 64 | You sho|uld find|
|00004600| 20 6e 6f 20 70 72 6f 62 | 6c 65 6d 73 20 77 69 74 | no prob|lems wit|
|00004610| 68 0a 72 65 70 75 74 61 | 62 6c 65 20 6d 61 6e 75 |h.reputa|ble manu|
|00004620| 66 61 63 74 75 72 65 72 | 73 20 20 2c 20 68 6f 77 |facturer|s , how|
|00004630| 65 76 65 72 20 20 61 20 | 64 75 73 74 79 20 20 6f |ever a |dusty o|
|00004640| 72 20 73 63 72 61 74 63 | 68 65 64 20 20 20 20 77 |r scratc|hed w|
|00004650| 69 6c 6c 0a 61 66 66 65 | 63 74 20 74 68 65 20 20 |ill.affe|ct the |
|00004660| 72 65 74 72 69 65 76 61 | 6c 20 74 69 6d 65 2e 20 |retrieva|l time. |
|00004670| 20 41 20 66 65 77 20 20 | 6f 66 20 74 68 65 20 20 | A few |of the |
|00004680| 43 44 2d 52 4f 4d 20 64 | 72 69 76 65 73 20 20 69 |CD-ROM d|rives i|
|00004690| 6e 20 74 68 65 0a 6d 61 | 72 6b 65 74 20 70 65 72 |n the.ma|rket per|
|000046a0| 66 6f 72 6d 20 20 74 68 | 65 20 66 69 6e 61 6c 20 |form th|e final |
|000046b0| 6c 61 79 65 72 20 6f 66 | 20 65 72 72 6f 72 20 63 |layer of| error c|
|000046c0| 6f 72 72 65 63 74 69 6f | 6e 20 77 69 74 68 69 6e |orrectio|n within|
|000046d0| 20 74 68 65 20 50 43 0a | 72 61 74 68 65 72 20 74 | the PC.|rather t|
|000046e0| 68 61 6e 20 20 74 68 65 | 20 64 72 69 76 65 2c 20 |han the| drive, |
|000046f0| 20 74 68 69 73 20 63 61 | 6e 20 20 72 65 73 75 6c | this ca|n resul|
|00004700| 74 20 69 6e 20 20 6c 6f | 6e 67 20 64 61 74 61 20 |t in lo|ng data |
|00004710| 72 65 74 72 69 65 76 61 | 6c 0a 74 69 6d 65 73 20 |retrieva|l.times |
|00004720| 77 68 65 6e 20 20 61 20 | 64 69 73 63 20 20 69 73 |when a |disc is|
|00004730| 20 67 69 76 69 6e 67 20 | 20 61 20 68 69 67 68 20 | giving | a high |
|00004740| 20 65 72 72 6f 72 20 72 | 61 74 65 2e 54 68 65 20 | error r|ate.The |
|00004750| 64 72 69 76 65 20 6d 69 | 67 68 74 0a 61 6c 73 6f |drive mi|ght.also|
|00004760| 20 67 6f 20 62 61 63 6b | 20 61 75 74 6f 6d 61 74 | go back| automat|
|00004770| 69 63 61 6c 6c 79 20 20 | 74 6f 20 72 65 61 64 20 |ically |to read |
|00004780| 74 68 65 20 73 61 6d 65 | 20 62 6c 6f 63 6b 20 69 |the same| block i|
|00004790| 66 20 65 72 72 6f 72 20 | 72 61 74 65 73 0a 61 72 |f error |rates.ar|
|000047a0| 65 20 68 69 67 68 20 61 | 6e 64 20 69 6e 20 76 65 |e high a|nd in ve|
|000047b0| 72 79 20 62 61 64 20 63 | 61 73 65 73 20 6e 6f 20 |ry bad c|ases no |
|000047c0| 64 61 74 61 20 77 69 6c | 6c 20 62 65 20 72 65 61 |data wil|l be rea|
|000047d0| 64 20 61 74 20 61 6c 6c | 2e 20 54 72 65 61 74 0a |d at all|. Treat.|
|000047e0| 43 44 2d 52 4f 4d 73 20 | 61 73 20 20 63 61 72 65 |CD-ROMs |as care|
|000047f0| 66 75 6c 6c 79 20 61 73 | 20 79 6f 75 20 77 6f 75 |fully as| you wou|
|00004800| 6c 64 20 61 6e 79 20 20 | 6f 74 68 65 72 20 76 65 |ld any |other ve|
|00004810| 72 79 20 20 68 69 67 68 | 20 20 64 65 6e 73 69 74 |ry high| densit|
|00004820| 79 0a 73 74 6f 72 61 67 | 65 20 6d 65 64 69 75 6d |y.storag|e medium|
|00004830| 20 20 61 6e 64 20 20 79 | 6f 75 20 20 77 69 6c 6c | and y|ou will|
|00004840| 20 20 6f 62 74 61 69 6e | 20 20 67 6f 6f 64 20 20 | obtain| good |
|00004850| 70 65 72 66 6f 72 6d 61 | 6e 63 65 20 66 6f 72 20 |performa|nce for |
|00004860| 74 68 65 0a 6c 69 66 65 | 74 69 6d 65 20 6f 66 20 |the.life|time of |
|00004870| 74 68 65 20 64 61 74 61 | 20 61 6e 64 20 6d 6f 72 |the data| and mor|
|00004880| 65 2e 0a 0a 41 70 70 6c | 65 20 44 69 73 63 73 20 |e...Appl|e Discs |
|00004890| 61 6e 64 20 48 46 53 0a | 0a 4d 6f 73 74 20 6f 66 |and HFS.|.Most of|
|000048a0| 20 20 74 68 65 20 72 75 | 6c 65 73 20 61 6e 64 20 | the ru|les and |
|000048b0| 63 6f 6d 6d 65 6e 74 73 | 20 6d 61 64 65 20 61 62 |comments| made ab|
|000048c0| 6f 76 65 20 63 61 6e 20 | 62 65 20 61 6c 73 6f 20 |ove can |be also |
|000048d0| 61 70 70 6c 69 65 64 20 | 74 6f 0a 41 70 70 6c 65 |applied |to.Apple|
|000048e0| 20 61 6e 64 20 20 48 46 | 53 20 43 44 2d 52 4f 4d | and HF|S CD-ROM|
|000048f0| 73 2e 20 4f 6e 65 20 69 | 6d 70 6f 72 74 61 6e 74 |s. One i|mportant|
|00004900| 20 6e 6f 74 65 2c 20 68 | 6f 77 65 76 65 72 20 69 | note, h|owever i|
|00004910| 73 20 74 68 65 20 70 75 | 72 69 74 79 0a 6f 66 20 |s the pu|rity.of |
|00004920| 74 68 65 20 20 64 61 74 | 61 20 69 6d 61 67 65 2e |the dat|a image.|
|00004930| 20 41 70 70 6c 65 20 64 | 69 73 63 73 20 63 61 6e | Apple d|iscs can|
|00004940| 20 62 65 20 6d 61 64 65 | 20 62 79 20 6d 61 73 74 | be made| by mast|
|00004950| 65 72 69 6e 67 20 64 69 | 72 65 63 74 6c 79 0a 66 |ering di|rectly.f|
|00004960| 72 6f 6d 20 61 20 68 61 | 72 64 20 64 69 73 6b 2e |rom a ha|rd disk.|
|00004970| 0a 0a 49 66 20 79 6f 75 | 20 20 68 61 76 65 20 70 |..If you| have p|
|00004980| 65 72 66 6f 72 6d 65 64 | 20 20 61 20 6e 75 6d 62 |erformed| a numb|
|00004990| 65 72 20 20 6f 66 20 66 | 69 6c 65 20 64 65 6c 65 |er of f|ile dele|
|000049a0| 74 65 73 20 61 6e 64 20 | 69 6e 73 65 72 74 73 20 |tes and |inserts |
|000049b0| 79 6f 75 0a 77 69 6c 6c | 20 68 61 76 65 20 20 61 |you.will| have a|
|000049c0| 20 70 6f 6f 72 6c 79 20 | 20 73 74 72 75 63 74 75 | poorly | structu|
|000049d0| 72 65 64 20 68 61 72 64 | 20 64 69 73 6b 20 77 69 |red hard| disk wi|
|000049e0| 74 68 20 73 65 63 74 69 | 6f 6e 73 20 20 6f 66 20 |th secti|ons of |
|000049f0| 66 69 6c 65 73 0a 64 69 | 73 70 65 72 73 65 64 20 |files.di|spersed |
|00004a00| 6f 76 65 72 20 74 68 65 | 20 68 61 72 64 20 64 69 |over the| hard di|
|00004a10| 73 6b 20 73 75 72 66 61 | 63 65 2e 20 54 68 69 73 |sk surfa|ce. This|
|00004a20| 20 72 61 74 68 65 72 20 | 6d 65 73 73 79 20 73 74 | rather |messy st|
|00004a30| 72 75 63 74 75 72 65 0a | 77 69 6c 6c 20 74 68 65 |ructure.|will the|
|00004a40| 6e 20 62 65 20 64 69 72 | 65 63 74 6c 79 20 74 72 |n be dir|ectly tr|
|00004a50| 61 6e 73 66 65 72 72 65 | 64 20 74 6f 20 74 68 65 |ansferre|d to the|
|00004a60| 20 43 44 2d 52 4f 4d 20 | 77 68 69 63 68 20 63 61 | CD-ROM |which ca|
|00004a70| 6e 20 74 68 65 6e 20 69 | 6e 0a 76 65 72 79 20 6c |n then i|n.very l|
|00004a80| 6f 6e 67 20 20 61 63 63 | 65 73 73 20 74 69 6d 65 |ong acc|ess time|
|00004a90| 73 2e 20 20 54 61 6b 65 | 20 61 20 20 66 72 65 73 |s. Take| a fres|
|00004aa0| 68 20 65 6d 70 74 79 20 | 20 68 61 72 64 20 64 69 |h empty | hard di|
|00004ab0| 73 63 20 61 6e 64 20 63 | 6f 70 79 0a 79 6f 75 72 |sc and c|opy.your|
|00004ac0| 20 64 61 74 61 2c 20 69 | 6e 20 74 68 65 20 6f 72 | data, i|n the or|
|00004ad0| 64 65 72 20 74 68 61 74 | 20 79 6f 75 20 77 61 6e |der that| you wan|
|00004ae0| 74 20 69 74 20 74 6f 20 | 61 70 70 65 61 72 20 6f |t it to |appear o|
|00004af0| 6e 20 74 68 65 20 43 44 | 2d 52 4f 4d 2e 0a 54 68 |n the CD|-ROM..Th|
|00004b00| 69 73 20 77 69 6c 6c 20 | 72 65 73 75 6c 74 20 69 |is will |result i|
|00004b10| 6e 20 61 20 63 6c 65 61 | 6e 20 65 66 66 69 63 69 |n a clea|n effici|
|00004b20| 65 6e 74 20 69 6d 61 67 | 65 2e 0a 0a 41 63 63 65 |ent imag|e...Acce|
|00004b30| 73 73 20 54 69 6d 65 20 | 41 6e 61 6c 79 73 69 73 |ss Time |Analysis|
|00004b40| 20 50 6c 6f 74 73 20 66 | 6f 72 20 74 77 6f 20 43 | Plots f|or two C|
|00004b50| 44 2d 52 4f 4d 20 44 72 | 69 76 65 73 0a 0a 54 77 |D-ROM Dr|ives..Tw|
|00004b60| 6f 20 64 72 69 76 65 20 | 20 73 70 65 65 64 20 70 |o drive | speed p|
|00004b70| 6c 6f 74 73 20 73 68 6f | 77 69 6e 67 20 61 63 63 |lots sho|wing acc|
|00004b80| 65 73 73 20 74 69 6d 65 | 73 20 76 65 72 73 75 73 |ess time|s versus|
|00004b90| 20 64 61 74 61 20 6c 6f | 63 61 74 69 6f 6e 2e 0a | data lo|cation..|
|00004ba0| 4e 6f 74 65 20 74 68 61 | 74 20 20 74 68 65 20 27 |Note tha|t the '|
|00004bb0| 44 72 69 76 65 20 20 41 | 27 20 70 6c 6f 74 20 20 |Drive A|' plot |
|00004bc0| 69 73 20 76 65 72 79 20 | 6c 69 6e 65 61 72 20 61 |is very |linear a|
|00004bd0| 6e 64 20 61 70 70 72 6f | 61 63 68 65 73 20 74 68 |nd appro|aches th|
|00004be0| 65 0a 74 68 65 6f 72 65 | 74 69 63 61 6c 20 61 63 |e.theore|tical ac|
|00004bf0| 63 65 73 73 20 20 74 69 | 6d 65 20 61 73 20 20 64 |cess ti|me as d|
|00004c00| 69 73 74 61 6e 63 65 20 | 69 6e 63 72 65 61 73 65 |istance |increase|
|00004c10| 73 2e 20 20 44 72 69 76 | 65 20 41 20 20 68 61 73 |s. Driv|e A has|
|00004c20| 20 61 0a 70 6f 77 65 72 | 66 75 6c 20 68 65 61 64 | a.power|ful head|
|00004c30| 20 70 6f 73 69 74 69 6f | 6e 69 6e 67 20 6d 65 63 | positio|ning mec|
|00004c40| 68 61 6e 69 73 6d 20 61 | 6e 64 20 61 20 67 6f 6f |hanism a|nd a goo|
|00004c50| 64 20 73 65 65 6b 20 61 | 6c 67 6f 72 69 74 68 6d |d seek a|lgorithm|
|00004c60| 2e 0a 0a 54 68 65 20 20 | 27 44 72 69 76 65 20 42 |...The |'Drive B|
|00004c70| 27 20 70 6c 6f 74 20 69 | 73 20 6d 6f 72 65 20 74 |' plot i|s more t|
|00004c80| 79 70 69 63 61 6c 20 20 | 6f 66 20 63 75 72 72 65 |ypical |of curre|
|00004c90| 6e 74 20 43 44 2d 52 4f | 4d 20 64 72 69 76 65 73 |nt CD-RO|M drives|
|00004ca0| 2e 20 49 74 0a 73 68 6f | 77 73 20 74 68 61 74 20 |. It.sho|ws that |
|00004cb0| 20 74 68 65 20 64 69 66 | 66 65 72 65 6e 63 65 20 | the dif|ference |
|00004cc0| 20 62 65 74 77 65 65 6e | 20 6c 61 72 67 65 20 61 | between| large a|
|00004cd0| 63 63 65 73 73 20 70 61 | 74 68 73 20 61 6e 64 20 |ccess pa|ths and |
|00004ce0| 6d 65 64 69 75 6d 0a 61 | 63 63 65 73 73 20 70 61 |medium.a|ccess pa|
|00004cf0| 74 68 73 20 20 74 6f 20 | 62 65 20 20 72 65 6c 61 |ths to |be rela|
|00004d00| 74 69 76 65 6c 79 20 73 | 6d 61 6c 6c 2c 20 20 6f |tively s|mall, o|
|00004d10| 70 74 69 6d 69 73 65 20 | 6f 6e 6c 79 20 20 66 6f |ptimise |only fo|
|00004d20| 72 20 20 73 68 6f 72 74 | 0a 61 63 63 65 73 73 20 |r short|.access |
|00004d30| 70 61 74 68 73 20 74 6f | 20 67 61 69 6e 20 61 20 |paths to| gain a |
|00004d40| 73 70 65 65 64 20 61 64 | 76 61 6e 74 61 67 65 2e |speed ad|vantage.|
|00004d50| 0a 0a 44 72 69 76 65 20 | 41 0a 0a 28 73 74 61 72 |..Drive |A..(star|
|00004d60| 74 69 6e 67 20 62 6c 6f | 63 6b 20 30 29 0a 0a 45 |ting blo|ck 0)..E|
|00004d70| 6e 64 20 20 20 41 63 63 | 65 73 73 20 20 20 20 20 |nd Acc|ess |
|00004d80| 20 20 32 30 30 20 20 20 | 20 20 34 30 30 20 20 20 | 200 | 400 |
|00004d90| 20 20 36 30 30 20 20 20 | 20 20 38 30 30 20 20 20 | 600 | 800 |
|00004da0| 20 31 30 30 30 20 20 20 | 20 31 32 30 30 0a 42 6c | 1000 | 1200.Bl|
|00004db0| 6f 63 6b 20 54 69 6d 65 | 28 6d 73 29 20 20 20 20 |ock Time|(ms) |
|00004dc0| 20 20 20 0a 0a 30 20 20 | 20 20 20 20 20 20 20 20 | ..0 | |
|00004dd0| 20 20 20 20 33 33 30 20 | 20 20 20 20 20 20 20 2a | 330 | *|
|00004de0| 0a 32 37 30 30 30 20 20 | 20 20 20 20 20 20 20 20 |.27000 | |
|00004df0| 34 39 30 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |490 | |
|00004e00| 20 2a 0a 35 34 30 30 30 | 20 20 20 20 20 20 20 20 | *.54000| |
|00004e10| 20 20 35 34 30 20 20 20 | 20 20 20 20 20 20 20 20 | 540 | |
|00004e20| 20 20 20 20 20 20 2a 0a | 38 31 30 30 30 20 20 20 | *.|81000 |
|00004e30| 20 20 20 20 20 20 20 35 | 37 30 20 20 20 20 20 20 | 5|70 |
|00004e40| 20 20 20 20 20 20 20 20 | 20 20 20 20 2a 0a 31 30 | | *.10|
|00004e50| 38 30 30 30 20 20 20 20 | 20 20 20 20 20 36 31 30 |8000 | 610|
|00004e60| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004e70| 20 20 20 20 2a 0a 31 33 | 35 30 30 30 20 20 20 20 | *.13|5000 |
|00004e80| 20 20 20 20 20 36 35 30 | 20 20 20 20 20 20 20 20 | 650| |
|00004e90| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 2a 0a 31 | | *.1|
|00004ea0| 36 32 30 30 30 20 20 20 | 20 20 20 20 20 20 36 39 |62000 | 69|
|00004eb0| 30 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |0 | |
|00004ec0| 20 20 20 20 20 20 20 20 | 2a 0a 31 38 39 30 30 30 | |*.189000|
|00004ed0| 20 20 20 20 20 20 20 20 | 20 37 32 30 20 20 20 20 | | 720 |
|00004ee0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004ef0| 20 20 20 20 20 2a 0a 32 | 31 36 30 30 30 20 20 20 | *.2|16000 |
|00004f00| 20 20 20 20 20 20 37 37 | 30 20 20 20 20 20 20 20 | 77|0 |
|00004f10| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004f20| 20 20 20 2a 0a 32 34 33 | 30 30 30 20 20 20 20 20 | *.243|000 |
|00004f30| 20 20 20 20 38 30 30 20 | 20 20 20 20 20 20 20 20 | 800 | |
|00004f40| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004f50| 20 20 20 2a 0a 32 37 30 | 30 30 30 20 20 20 20 20 | *.270|000 |
|00004f60| 20 20 20 20 38 34 30 20 | 20 20 20 20 20 20 20 20 | 840 | |
|00004f70| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004f80| 20 20 20 20 20 2a 0a 32 | 39 37 30 30 30 20 20 20 | *.2|97000 |
|00004f90| 20 20 20 20 20 20 38 37 | 30 20 20 20 20 20 20 20 | 87|0 |
|00004fa0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004fb0| 20 20 20 20 20 20 20 20 | 2a 0a 33 32 34 30 30 30 | |*.324000|
|00004fc0| 20 20 20 20 20 20 20 20 | 20 39 31 30 20 20 20 20 | | 910 |
|00004fd0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00004fe0| 20 20 20 20 20 20 20 20 | 20 20 20 20 2a 0a 0a 44 | | *..D|
|00004ff0| 72 69 76 65 20 42 0a 0a | 28 73 74 61 72 74 69 6e |rive B..|(startin|
|00005000| 67 20 62 6c 6f 63 6b 20 | 30 29 0a 0a 45 6e 64 20 |g block |0)..End |
|00005010| 20 20 41 63 63 65 73 73 | 20 20 20 20 20 32 30 30 | Access| 200|
|00005020| 20 20 20 20 20 34 30 30 | 20 20 20 20 20 36 30 30 | 400| 600|
|00005030| 20 20 20 20 20 38 30 30 | 20 20 20 20 31 30 30 30 | 800| 1000|
|00005040| 20 20 20 20 31 32 30 30 | 0a 42 6c 6f 63 6b 20 54 | 1200|.Block T|
|00005050| 69 6d 65 28 6d 73 29 20 | 20 20 20 20 0a 0a 30 20 |ime(ms) | ..0 |
|00005060| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 33 32 30 | | 320|
|00005070| 20 20 20 20 20 20 2a 0a | 32 37 30 30 30 20 20 20 | *.|27000 |
|00005080| 20 20 20 20 20 20 20 37 | 31 30 20 20 20 20 20 20 | 7|10 |
|00005090| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000050a0| 2a 0a 35 34 30 30 30 20 | 20 20 20 20 20 20 20 20 |*.54000 | |
|000050b0| 20 38 32 30 20 20 20 20 | 20 20 20 20 20 20 20 20 | 820 | |
|000050c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2a 0a | | *.|
|000050d0| 38 31 30 30 30 20 20 20 | 20 20 20 20 20 20 20 39 |81000 | 9|
|000050e0| 32 30 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |20 | |
|000050f0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005100| 2a 0a 31 30 38 30 30 30 | 20 20 20 20 20 20 20 20 |*.108000| |
|00005110| 20 39 39 30 20 20 20 20 | 20 20 20 20 20 20 20 20 | 990 | |
|00005120| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005130| 20 20 20 20 2a 0a 31 33 | 35 30 30 30 20 20 20 20 | *.13|5000 |
|00005140| 20 20 20 20 20 31 30 34 | 30 20 20 20 20 20 20 20 | 104|0 |
|00005150| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005160| 20 20 20 20 20 20 20 20 | 20 20 2a 0a 31 36 32 30 | | *.1620|
|00005170| 30 30 20 20 20 20 20 20 | 20 20 20 31 31 30 30 20 |00 | 1100 |
|00005180| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005190| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000051a0| 20 20 20 2a 0a 31 38 39 | 30 30 30 20 20 20 20 20 | *.189|000 |
|000051b0| 20 20 20 20 31 31 35 30 | 20 20 20 20 20 20 20 20 | 1150| |
|000051c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000051d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2a 0a | | *.|
|000051e0| 32 31 36 30 30 30 20 20 | 20 20 20 20 20 20 20 31 |216000 | 1|
|000051f0| 31 39 30 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |190 | |
|00005200| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005210| 20 20 20 20 20 20 20 20 | 20 20 20 2a 0a 32 34 33 | | *.243|
|00005220| 30 30 30 20 20 20 20 20 | 20 20 20 20 31 32 34 30 |000 | 1240|
|00005230| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005240| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005250| 20 20 20 20 20 20 20 20 | 20 20 2a 0a 32 37 30 30 | | *.2700|
|00005260| 30 30 20 20 20 20 20 20 | 20 20 20 31 32 39 30 20 |00 | 1290 |
|00005270| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005280| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005290| 20 20 20 20 20 20 20 20 | 20 20 20 2a 0a 32 39 37 | | *.297|
|000052a0| 30 30 30 20 20 20 20 20 | 20 20 20 20 31 33 33 30 |000 | 1330|
|000052b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000052c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000052d0| 20 20 20 20 20 20 20 20 | 20 20 20 20 2a 0a 33 32 | | *.32|
|000052e0| 34 30 30 30 20 20 20 20 | 20 20 20 20 20 31 33 36 |4000 | 136|
|000052f0| 30 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |0 | |
|00005300| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|00005310| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 2a 0a | | *.|
|00005320| 0a 0a 0a 52 65 66 65 72 | 65 6e 63 65 3a 20 43 44 |...Refer|ence: CD|
|00005330| 2d 52 4f 4d 20 61 6e 65 | 43 44 6f 74 65 20 66 72 |-ROM ane|CDote fr|
|00005340| 6f 6d 20 74 68 65 20 4e | 69 6d 62 75 73 20 49 6e |om the N|imbus In|
|00005350| 66 6f 72 6d 61 74 69 6f | 6e 20 53 79 73 74 65 6d |formatio|n System|
|00005360| 0a 46 69 6c 65 44 61 74 | 61 82 21 42 6f 6f 74 00 |.FileDat|a.!Boot.|
|00005370| 00 00 00 00 00 42 00 00 | 00 44 eb ff ff e3 c6 83 |.....B..|.D......|
|00005380| 69 03 00 f0 41 53 65 74 | 20 21 37 2b 5f 57 6f 72 |i...ASet| !7+_Wor|
|00005390| 6b 24 44 69 72 20 3c 4f | 62 65 79 24 44 69 72 3e |k$Dir <O|bey$Dir>|
|000053a0| 2e 77 6f 72 6b 0a 0a 49 | 63 6f 6e 73 70 72 69 74 |.work..I|consprit|
|000053b0| 65 73 20 3c 4f 62 65 79 | 24 44 69 72 3e 2e 21 53 |es <Obey|$Dir>.!S|
|000053c0| 70 72 69 74 65 73 0a 46 | 69 6c 65 44 61 74 61 82 |prites.F|ileData.|
|000053d0| 21 52 55 4e 00 00 00 00 | 00 00 00 6a 00 00 00 45 |!RUN....|...j...E|
|000053e0| eb ff ff 29 b6 90 db 03 | 00 33 da 53 65 74 20 21 |...)....|.3.Set !|
|000053f0| 37 2b 5f 57 6f 72 6b 24 | 44 69 72 20 3c 4f 62 65 |7+_Work$|Dir <Obe|
|00005400| 79 24 44 69 72 3e 2e 77 | 6f 72 6b 0a 69 63 6f 6e |y$Dir>.w|ork.icon|
|00005410| 73 70 72 69 74 65 73 20 | 3c 6f 62 65 79 24 64 69 |sprites |<obey$di|
|00005420| 72 3e 2e 21 73 70 72 69 | 74 65 73 0a 46 69 6c 65 |r>.!spri|tes.File|
|00005430| 72 5f 4f 70 65 6e 44 69 | 72 20 3c 21 37 2b 5f 57 |r_OpenDi|r <!7+_W|
|00005440| 6f 72 6b 24 44 69 72 3e | 20 32 30 30 20 32 30 30 |ork$Dir>| 200 200|
|00005450| 20 34 30 30 0a 46 69 6c | 65 44 61 74 61 82 21 73 | 400.Fil|eData.!s|
|00005460| 70 72 69 74 65 73 00 00 | 00 60 03 00 00 44 f9 ff |prites..|.`...D..|
|00005470| ff 2f 2e 29 5c 03 00 49 | 5f 01 00 00 00 10 00 00 |./.)\..I|_.......|
|00005480| 00 64 03 00 00 54 03 00 | 00 21 37 2b 5f 77 6f 72 |.d...T..|.!7+_wor|
|00005490| 6b 00 00 00 00 04 00 00 | 00 10 00 00 00 00 00 00 |k.......|........|
|000054a0| 00 07 00 00 00 ac 00 00 | 00 00 02 00 00 0c 00 00 |........|........|
|000054b0| 00 00 ff ff ff 00 ff ff | ff 00 dd dd dd 00 dd dd |........|........|
|000054c0| dd 00 bb bb bb 00 bb bb | bb 00 99 99 99 00 99 99 |........|........|
|000054d0| 99 00 77 77 77 00 77 77 | 77 00 55 55 55 00 55 55 |..www.ww|w.UUU.UU|
|000054e0| 55 00 33 33 33 00 33 33 | 33 00 00 00 00 00 00 00 |U.333.33|3.......|
|000054f0| 00 00 00 44 99 00 00 44 | 99 00 ee ee 00 00 ee ee |...D...D|........|
|00005500| 00 00 00 cc 00 00 00 cc | 00 00 dd 00 00 00 dd 00 |........|........|
|00005510| 00 00 ee ee bb 00 ee ee | bb 00 55 88 00 00 55 88 |........|..U...U.|
|00005520| 00 00 ff bb 00 00 ff bb | 00 00 00 bb ff 00 00 bb |........|........|
|00005530| ff 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005540| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005550| 00 00 00 00 00 00 00 00 | 00 77 77 77 77 77 77 77 |........|.wwwwwww|
|00005560| 77 77 77 77 77 77 77 77 | 77 77 00 00 00 47 44 11 |wwwwwwww|ww...GD.|
|00005570| 11 41 44 44 44 11 44 44 | 44 14 11 11 44 74 00 00 |.ADDD.DD|D...Dt..|
|00005580| 00 77 77 77 77 77 77 77 | 77 77 77 77 77 77 77 77 |.wwwwwww|wwwwwwww|
|00005590| 77 77 00 00 00 c7 c7 cc | cc 77 77 77 77 77 77 77 |ww......|.wwwwwww|
|000055a0| 77 c7 cc cc 7c 7c 00 00 | 00 70 7c cc cc f7 6a 77 |w...||..|.p|...jw|
|000055b0| a7 af 7a f4 ff c7 cc cc | c7 07 00 00 00 00 c7 77 |..z.....|.......w|
|000055c0| 77 a7 7a ff 7a 77 77 f6 | ff 77 77 77 7c 00 00 00 |w.z.zww.|.www|...|
|000055d0| 00 00 70 cc cc f7 7a af | aa fa 76 ff ff c7 cc cc |..p...z.|..v.....|
|000055e0| 07 00 00 00 00 00 70 77 | 77 f7 fa af fa 47 ff ff |......pw|w....G..|
|000055f0| ff 77 77 77 07 00 00 00 | 00 00 e7 e7 ee f7 aa fa |.www....|........|
|00005600| 7a ff ff f7 ff e7 ee 7e | 7e 00 00 00 00 70 7e 77 |z......~|~....p~w|
|00005610| 77 a7 fa fa 77 ff 77 77 | f7 77 77 77 e7 07 00 00 |w...w.ww|.www....|
|00005620| 00 e7 e7 ee ee a7 aa ff | 67 ff ff f7 ff e7 ee ee |........|g.......|
|00005630| 7e 7e 00 00 00 77 77 77 | 77 77 77 77 77 77 77 77 |~~...www|wwwwwwww|
|00005640| 77 77 77 77 77 77 00 00 | 00 47 14 11 11 41 66 66 |wwwwww..|.G...Aff|
|00005650| 66 66 66 66 46 11 11 11 | 41 74 00 00 00 47 44 44 |ffffF...|At...GDD|
|00005660| 44 44 44 44 44 44 44 44 | 44 44 44 44 44 74 00 00 |DDDDDDDD|DDDDDt..|
|00005670| 00 77 77 77 77 77 77 77 | 77 77 77 77 77 77 77 77 |.wwwwwww|wwwwwwww|
|00005680| 77 77 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |ww......|........|
|00005690| 00 00 00 00 00 00 ff ff | ff 00 00 00 00 00 00 00 |........|........|
|000056a0| 00 00 00 00 00 00 00 00 | 00 00 ff ff ff ff ff ff |........|........|
|000056b0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000056c0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000056d0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000056e0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000056f0| ff ff ff ff ff ff ff ff | ff ff ff ff ff f0 ff ff |........|........|
|00005700| ff ff ff ff ff ff ff ff | ff ff ff ff ff 0f ff ff |........|........|
|00005710| ff 00 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005720| ff 00 ff ff ff 00 f0 ff | ff ff ff ff ff ff ff ff |........|........|
|00005730| ff ff ff ff 0f 00 ff ff | ff 00 f0 ff ff ff ff ff |........|........|
|00005740| ff ff ff ff ff ff ff ff | 0f 00 ff ff ff 00 ff ff |........|........|
|00005750| ff ff ff ff ff ff ff ff | ff ff ff ff ff 00 ff ff |........|........|
|00005760| ff f0 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005770| ff 0f ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005780| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005790| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000057a0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000057b0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000057c0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|000057d0| ff ff ff ff ff ff ff ff | ff 46 69 6c 65 44 61 74 |........|.FileDat|
|000057e0| 61 82 21 53 70 72 69 74 | 65 73 32 32 00 80 06 00 |a.!Sprit|es22....|
|000057f0| 00 44 f9 ff ff df 9b 89 | 59 03 00 c2 c9 01 00 00 |.D......|Y.......|
|00005800| 00 10 00 00 00 84 06 00 | 00 74 06 00 00 21 37 2b |........|.t...!7+|
|00005810| 5f 77 6f 72 6b 00 00 00 | 00 04 00 00 00 24 00 00 |_work...|.....$..|
|00005820| 00 00 00 00 00 13 00 00 | 00 ac 00 00 00 90 03 00 |........|........|
|00005830| 00 1b 00 00 00 00 ff ff | ff 00 ff ff ff 00 dd dd |........|........|
|00005840| dd 00 dd dd dd 00 bb bb | bb 00 bb bb bb 00 99 99 |........|........|
|00005850| 99 00 99 99 99 00 77 77 | 77 00 77 77 77 00 55 55 |......ww|w.www.UU|
|00005860| 55 00 55 55 55 00 33 33 | 33 00 33 33 33 00 00 00 |U.UUU.33|3.333...|
|00005870| 00 00 00 00 00 00 00 44 | 99 00 00 44 99 00 ee ee |.......D|...D....|
|00005880| 00 00 ee ee 00 00 00 cc | 00 00 00 cc 00 00 dd 00 |........|........|
|00005890| 00 00 dd 00 00 00 ee ee | bb 00 ee ee bb 00 55 88 |........|......U.|
|000058a0| 00 00 55 88 00 00 ff bb | 00 00 ff bb 00 00 00 bb |..U.....|........|
|000058b0| ff 00 00 bb ff 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000058c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000058d0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000058e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000058f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005900| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005910| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005920| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005930| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005940| 00 70 77 77 77 77 77 77 | 77 77 77 77 77 77 77 77 |.pwwwwww|wwwwwwww|
|00005950| 77 77 77 00 00 70 44 44 | 44 44 44 44 44 44 44 44 |www..pDD|DDDDDDDD|
|00005960| 44 44 44 44 44 44 74 00 | 00 70 44 14 11 11 41 44 |DDDDDDt.|.pD...AD|
|00005970| 44 14 11 44 44 44 11 11 | 11 44 74 00 00 70 44 44 |D..DDD..|.Dt..pDD|
|00005980| 44 44 44 44 44 44 44 44 | 44 44 44 44 44 44 74 00 |DDDDDDDD|DDDDDDt.|
|00005990| 00 70 77 77 77 77 77 77 | 77 77 77 77 77 77 77 77 |.pwwwwww|wwwwwwww|
|000059a0| 77 77 77 00 00 70 cc c7 | cc cc cc cc cc cc cc cc |www..p..|........|
|000059b0| cc cc cc cc cc c7 7c 00 | 00 00 c7 7c cc cc 77 77 |......|.|...|..ww|
|000059c0| 77 77 77 77 77 77 c7 cc | 7c cc 07 00 00 00 70 cc |wwwwww..||.....p.|
|000059d0| c7 cc f7 6a 74 a7 af 7a | f4 ff c7 cc c7 7c 00 00 |...jt..z|.....|..|
|000059e0| 00 00 00 c7 7c cc a7 7a | aa 77 a4 5a f7 ff c7 7c |....|..z|.w.Z...||
|000059f0| cc 07 00 00 00 00 00 70 | cc c7 a7 7a ff 2a 77 77 |.......p|...z.*ww|
|00005a00| f6 ff c7 c7 7c 00 00 00 | 00 00 00 00 c7 7c f7 6a |....|...|.....|.j|
|00005a10| af aa fa 6f f2 ff 77 cc | 07 00 00 00 00 00 00 00 |...o..w.|........|
|00005a20| 70 c7 f7 7a af aa fa 76 | ff ff c7 77 00 00 00 00 |p..z...v|...w....|
|00005a30| 00 00 00 00 00 77 a7 7a | af fa 7f f7 ff ff 77 07 |.....w.z|......w.|
|00005a40| 00 00 00 00 00 00 00 00 | 70 e7 f7 ff ff fa 47 ff |........|p.....G.|
|00005a50| ff ff e7 77 00 00 00 00 | 00 00 00 00 e7 e7 a7 aa |...w....|........|
|00005a60| fa 7f f4 3f f5 ff e7 e7 | 07 00 00 00 00 00 00 70 |...?....|.......p|
|00005a70| ee e7 f7 aa fa 7a ff 3f | f5 ff e7 e7 7e 00 00 00 |.....z.?|....~...|
|00005a80| 00 00 00 e7 ee 77 f7 aa | fa 75 ff 3f f5 ff 77 e7 |.....w..|.u.?..w.|
|00005a90| ee 07 00 00 00 00 70 ee | 7e ee a7 fa fa 77 7a 77 |......p.|~....wzw|
|00005aa0| 77 27 e7 7e ee 7e 00 00 | 00 00 e7 ee e7 ee a7 aa |w'.~.~..|........|
|00005ab0| fa 67 ff 3f f5 ff e7 ee | e7 ee 07 00 00 70 ee 7e |.g.?....|.....p.~|
|00005ac0| ee ee f7 ff ff 67 ff 3f | f5 ff e7 ee 7e ee 7e 00 |.....g.?|....~.~.|
|00005ad0| 00 70 77 77 77 77 77 77 | 77 77 77 77 77 77 77 77 |.pwwwwww|wwwwwwww|
|00005ae0| 77 77 77 00 00 70 44 44 | 44 44 44 44 44 44 44 44 |www..pDD|DDDDDDDD|
|00005af0| 44 44 44 44 44 44 74 00 | 00 70 44 44 44 44 44 46 |DDDDDDt.|.pDDDDDF|
|00005b00| 44 44 44 44 44 46 44 44 | 44 44 74 00 00 70 44 14 |DDDDDFDD|DDt..pD.|
|00005b10| 11 11 41 66 66 66 66 66 | 66 46 11 11 11 44 74 00 |..Afffff|fF...Dt.|
|00005b20| 00 70 44 14 11 77 41 66 | 66 66 66 66 66 46 61 16 |.pD..wAf|fffffFa.|
|00005b30| 11 44 74 00 00 70 44 14 | 11 11 41 46 44 44 44 44 |.Dt..pD.|..AFDDDD|
|00005b40| 44 46 11 11 11 44 74 00 | 00 70 44 44 44 44 44 44 |DF...Dt.|.pDDDDDD|
|00005b50| 44 44 44 44 44 44 44 44 | 44 44 74 00 00 70 77 77 |DDDDDDDD|DDt..pww|
|00005b60| 77 77 77 77 77 77 77 77 | 77 77 77 77 77 77 77 00 |wwwwwwww|wwwwwww.|
|00005b70| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005b80| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005b90| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005ba0| 00 00 00 00 00 00 00 00 | 00 00 00 f0 ff 00 00 00 |........|........|
|00005bb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 f0 |........|........|
|00005bc0| ff 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005bd0| 00 00 00 f0 ff 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005be0| 00 00 00 00 00 00 00 f0 | ff 00 00 00 00 00 00 00 |........|........|
|00005bf0| 00 00 00 00 00 00 00 00 | 00 00 00 f0 ff 00 00 00 |........|........|
|00005c00| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 f0 |........|........|
|00005c10| ff 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005c20| 00 00 00 f0 ff f0 ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005c30| ff ff ff ff ff ff ff f0 | ff f0 ff ff ff ff ff ff |........|........|
|00005c40| ff ff ff ff ff ff ff ff | ff ff ff f0 ff f0 ff ff |........|........|
|00005c50| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff f0 |........|........|
|00005c60| ff f0 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005c70| ff ff ff f0 ff f0 ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005c80| ff ff ff ff ff ff ff f0 | ff f0 ff ff ff ff ff ff |........|........|
|00005c90| ff ff ff ff ff ff ff ff | ff ff ff f0 ff 00 ff ff |........|........|
|00005ca0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff 0f f0 |........|........|
|00005cb0| ff 00 f0 ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005cc0| ff ff 00 f0 ff 00 00 ff | ff ff ff ff ff ff ff ff |........|........|
|00005cd0| ff ff ff ff ff 0f 00 f0 | ff 00 00 f0 ff ff ff ff |........|........|
|00005ce0| ff ff ff ff ff ff ff ff | ff 00 00 f0 ff 00 00 00 |........|........|
|00005cf0| ff ff ff ff ff ff ff ff | ff ff ff ff 0f 00 00 f0 |........|........|
|00005d00| ff 00 00 00 f0 ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005d10| 00 00 00 f0 ff 00 00 00 | 00 ff ff ff ff ff ff ff |........|........|
|00005d20| ff ff ff 0f 00 00 00 f0 | ff 00 00 00 f0 ff ff ff |........|........|
|00005d30| ff ff ff ff ff ff ff ff | 00 00 00 f0 ff 00 00 00 |........|........|
|00005d40| ff ff ff ff ff ff ff ff | ff ff ff ff 0f 00 00 f0 |........|........|
|00005d50| ff 00 00 f0 ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005d60| ff 00 00 f0 ff 00 00 ff | ff ff ff ff ff ff ff ff |........|........|
|00005d70| ff ff ff ff ff 0f 00 f0 | ff 00 f0 ff ff ff ff ff |........|........|
|00005d80| ff ff ff ff ff ff ff ff | ff ff 00 f0 ff 00 ff ff |........|........|
|00005d90| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff 0f f0 |........|........|
|00005da0| ff f0 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005db0| ff ff ff f0 ff f0 ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005dc0| ff ff ff ff ff ff ff f0 | ff f0 ff ff ff ff ff ff |........|........|
|00005dd0| ff ff ff ff ff ff ff ff | ff ff ff f0 ff f0 ff ff |........|........|
|00005de0| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff f0 |........|........|
|00005df0| ff f0 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005e00| ff ff ff f0 ff f0 ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005e10| ff ff ff ff ff ff ff f0 | ff f0 ff ff ff ff ff ff |........|........|
|00005e20| ff ff ff ff ff ff ff ff | ff ff ff f0 ff f0 ff ff |........|........|
|00005e30| ff ff ff ff ff ff ff ff | ff ff ff ff ff ff ff f0 |........|........|
|00005e40| ff f0 ff ff ff ff ff ff | ff ff ff ff ff ff ff ff |........|........|
|00005e50| ff ff ff f0 ff 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00005e60| 00 00 00 00 00 00 00 f0 | ff 00 00 00 00 00 00 00 |........|........|
|00005e70| 00 00 00 00 00 00 00 00 | 00 00 00 f0 ff 46 69 6c |........|.....Fil|
|00005e80| 65 44 61 74 61 82 4f 5f | 68 65 61 64 66 6f 6f 74 |eData.O_|headfoot|
|00005e90| 00 50 00 00 00 44 ff ff | ff f3 f0 c0 84 03 00 e6 |.P...D..|........|
|00005ea0| 22 40 40 74 6f 70 0a 53 | 42 20 52 49 53 43 4f 53 |"@@top.S|B RISCOS|
|00005eb0| 20 40 20 47 42 52 0a 25 | 4f 20 25 50 2f 25 51 20 | @ GBR.%|O %P/%Q |
|00005ec0| 37 2b 0a 0a 40 40 62 6f | 74 74 6f 6d 0a 0a 53 65 |7+..@@bo|ttom..Se|
|00005ed0| 6e 64 20 45 52 52 2d 66 | 69 6c 65 73 20 74 6f 20 |nd ERR-f|iles to |
|00005ee0| 47 2a 2a 2a 2a 20 40 20 | 47 42 37 2a 2a 2a 0a 0a |G**** @ |GB7***..|
|00005ef0| 0a 46 69 6c 65 44 61 74 | 61 82 68 65 61 64 66 6f |.FileDat|a.headfo|
|00005f00| 6f 74 00 00 00 51 00 00 | 00 44 ff ff ff a0 87 42 |ot...Q..|.D.....B|
|00005f10| e3 03 00 4a b3 40 40 74 | 6f 70 0a 53 42 20 52 49 |...J.@@t|op.SB RI|
|00005f20| 53 43 4f 53 20 40 20 47 | 42 52 0a 25 4f 20 25 50 |SCOS @ G|BR.%O %P|
|00005f30| 2f 25 51 20 37 2b 0a 0a | 40 40 62 6f 74 74 6f 6d |/%Q 7+..|@@bottom|
|00005f40| 0a 0a 53 65 6e 64 20 45 | 52 52 2d 66 69 6c 65 73 |..Send E|RR-files|
|00005f50| 20 74 6f 20 47 57 34 4e | 45 49 20 40 20 47 42 37 | to GW4N|EI @ GB7|
|00005f60| 4f 41 52 0a 0a 0a 46 69 | 6c 65 44 61 74 61 82 21 |OAR...Fi|leData.!|
|00005f70| 42 6f 6f 74 00 00 00 00 | 00 00 77 00 00 00 44 eb |Boot....|..w...D.|
|00005f80| ff ff 9f f7 1c 7e 03 00 | 6e 9f 49 63 6f 6e 53 70 |.....~..|n.IconSp|
|00005f90| 72 69 74 65 73 20 3c 4f | 62 65 79 24 44 69 72 3e |rites <O|bey$Dir>|
|00005fa0| 2e 21 53 70 72 69 74 65 | 73 0a 2a 53 65 74 20 37 |.!Sprite|s.*Set 7|
|00005fb0| 70 6c 75 73 24 44 69 72 | 20 3c 4f 62 65 79 24 44 |plus$Dir| <Obey$D|
|00005fc0| 69 72 3e 0a 2a 53 65 74 | 20 37 61 64 64 24 70 61 |ir>.*Set| 7add$pa|
|00005fd0| 74 68 20 3c 37 50 6c 75 | 73 24 44 69 72 3e 2e 0a |th <7Plu|s$Dir>..|
|00005fe0| 2a 53 65 74 20 41 6c 69 | 61 73 24 37 50 6c 75 73 |*Set Ali|as$7Plus|
|00005ff0| 20 37 61 64 64 3a 21 52 | 75 6e 69 6d 61 67 65 20 | 7add:!R|unimage |
|00006000| 0a 46 69 6c 65 44 61 74 | 61 82 21 43 68 6f 69 63 |.FileDat|a.!Choic|
|00006010| 65 73 00 00 00 71 00 00 | 00 44 ff ff ff 17 db 26 |es...q..|.D.....&|
|00006020| 91 03 00 ca 79 6f 66 66 | 20 6f 66 66 20 74 65 78 |....yoff| off tex|
|00006030| 74 0a 69 63 6e 20 31 35 | 20 6f 66 66 0a 69 63 6e |t.icn 15| off.icn|
|00006040| 20 31 36 20 6f 66 66 0a | 69 63 6e 20 31 37 20 6f | 16 off.|icn 17 o|
|00006050| 6e 0a 69 63 6e 20 31 38 | 20 22 35 30 30 30 22 0a |n.icn 18| "5000".|
|00006060| 69 63 6e 20 32 31 20 6f | 66 66 0a 69 63 6e 20 32 |icn 21 o|ff.icn 2|
|00006070| 32 20 6f 6e 0a 69 63 6e | 20 32 34 20 22 3c 21 37 |2 on.icn| 24 "<!7|
|00006080| 2b 5f 57 6f 72 6b 24 64 | 69 72 3e 2e 68 65 61 64 |+_Work$d|ir>.head|
|00006090| 66 6f 6f 74 22 0a 46 69 | 6c 65 44 61 74 61 82 21 |foot".Fi|leData.!|
|000060a0| 48 65 6c 70 00 00 00 00 | 00 00 bc 3c 00 00 44 ff |Help....|...<..D.|
|000060b0| ff ff f4 01 c1 84 03 00 | 13 f6 37 50 6c 75 73 20 |........|..7Plus |
|000060c0| 66 6f 72 20 74 68 65 20 | 41 72 63 68 69 6d 65 64 |for the |Archimed|
|000060d0| 65 73 20 3a 20 56 65 72 | 73 69 6f 6e 20 31 2e 30 |es : Ver|sion 1.0|
|000060e0| 30 0a 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |0.======|========|
|000060f0| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 3d 3d 3d 3d 3d 3d 3d |========|========|
|00006100| 3d 3d 3d 3d 3d 3d 3d 3d | 3d 0a 0a 49 6e 74 72 6f |========|=..Intro|
|00006110| 64 75 63 74 69 6f 6e 0a | 2d 2d 2d 2d 2d 2d 2d 2d |duction.|--------|
|00006120| 2d 2d 2d 2d 0a 0a 48 69 | 70 20 48 69 70 20 48 6f |----..Hi|p Hip Ho|
|00006130| 6f 72 61 79 21 21 20 54 | 68 72 6f 77 20 61 77 61 |oray!! T|hrow awa|
|00006140| 79 20 74 68 61 74 20 74 | 69 72 65 64 20 6f 6c 64 |y that t|ired old|
|00006150| 20 50 43 20 65 6d 75 6c | 61 74 6f 72 20 61 6e 64 | PC emul|ator and|
|00006160| 20 69 6e 73 74 61 6c 6c | 0a 37 50 6c 75 73 20 66 | install|.7Plus f|
|00006170| 6f 72 20 74 68 65 20 41 | 72 63 68 69 6d 65 64 65 |or the A|rchimede|
|00006180| 73 20 69 6e 73 74 65 61 | 64 2e 20 49 74 73 20 62 |s instea|d. Its b|
|00006190| 65 65 6e 20 61 20 6c 6f | 6e 67 20 74 69 6d 65 20 |een a lo|ng time |
|000061a0| 63 6f 6d 69 6e 67 20 62 | 75 74 20 74 68 65 0a 41 |coming b|ut the.A|
|000061b0| 72 63 68 69 6d 65 64 65 | 73 20 6e 6f 77 20 68 61 |rchimede|s now ha|
|000061c0| 73 20 61 20 6e 61 74 69 | 76 65 20 76 65 72 73 69 |s a nati|ve versi|
|000061d0| 6f 6e 20 6f 66 20 37 50 | 6c 75 73 2c 20 61 6c 6c |on of 7P|lus, all|
|000061e0| 20 62 65 20 69 74 20 69 | 6e 20 63 6f 6d 6d 61 6e | be it i|n comman|
|000061f0| 64 0a 6c 69 6e 65 20 66 | 6f 72 6d 2e 0a 0a 46 6f |d.line f|orm...Fo|
|00006200| 72 20 74 68 6f 73 65 20 | 6f 66 20 79 6f 75 20 77 |r those |of you w|
|00006210| 68 6f 20 61 6c 72 65 61 | 64 79 20 75 73 65 20 37 |ho alrea|dy use 7|
|00006220| 50 6c 75 73 20 75 6e 64 | 65 72 20 74 68 65 20 50 |Plus und|er the P|
|00006230| 43 20 45 6d 75 6c 61 74 | 6f 72 20 74 68 69 73 0a |C Emulat|or this.|
|00006240| 70 72 6f 67 72 61 6d 20 | 73 68 6f 75 6c 64 20 6e |program |should n|
|00006250| 6f 74 20 62 65 20 74 6f | 6f 20 6d 75 63 68 20 6f |ot be to|o much o|
|00006260| 66 20 61 20 63 75 6c 74 | 75 72 65 20 73 68 6f 63 |f a cult|ure shoc|
|00006270| 6b 2e 20 46 6f 72 20 74 | 68 6f 73 65 20 77 68 6f |k. For t|hose who|
|00006280| 20 64 6f 6e 27 74 0a 75 | 73 65 20 74 68 65 20 50 | don't.u|se the P|
|00006290| 43 20 65 6d 75 6c 61 74 | 6f 72 20 6f 72 20 74 68 |C emulat|or or th|
|000062a0| 65 20 63 6f 6d 6d 61 6e | 64 20 6c 69 6e 65 20 49 |e comman|d line I|
|000062b0| 20 61 70 6f 6c 6f 67 69 | 7a 65 20 66 6f 72 20 72 | apologi|ze for r|
|000062c0| 65 6c 65 61 73 69 6e 67 | 20 74 68 69 73 0a 70 72 |eleasing| this.pr|
|000062d0| 6f 67 72 61 6d 20 77 69 | 74 68 20 6e 6f 20 6e 69 |ogram wi|th no ni|
|000062e0| 63 65 27 6e 27 65 61 73 | 79 20 64 65 73 6b 74 6f |ce'n'eas|y deskto|
|000062f0| 70 20 66 72 6f 6e 74 20 | 65 6e 64 2c 20 62 75 74 |p front |end, but|
|00006300| 20 6f 6e 63 65 20 74 68 | 69 73 0a 63 6f 6e 76 65 | once th|is.conve|
|00006310| 72 73 69 6f 6e 20 69 73 | 20 70 72 6f 76 65 6e 20 |rsion is| proven |
|00006320| 69 6e 20 74 68 65 20 66 | 69 65 6c 64 20 74 68 65 |in the f|ield the|
|00006330| 6e 20 49 20 73 68 61 6c | 6c 20 64 65 76 6f 74 65 |n I shal|l devote|
|00006340| 20 6d 6f 72 65 20 74 69 | 6d 65 20 74 6f 20 74 68 | more ti|me to th|
|00006350| 65 0a 64 65 73 6b 74 6f | 70 20 76 65 72 73 69 6f |e.deskto|p versio|
|00006360| 6e 2e 0a 0a 54 68 65 6f | 72 79 20 62 65 68 69 6e |n...Theo|ry behin|
|00006370| 64 20 74 68 65 20 63 6f | 6e 76 65 72 73 69 6f 6e |d the co|nversion|
|00006380| 0a 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |.-------|--------|
|00006390| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 0a 0a 57 |--------|-----..W|
|000063a0| 68 65 6e 20 49 20 73 74 | 61 72 74 65 64 20 70 6f |hen I st|arted po|
|000063b0| 72 74 69 6e 67 20 37 50 | 6c 75 73 20 61 63 72 6f |rting 7P|lus acro|
|000063c0| 73 73 20 74 6f 20 74 68 | 65 20 41 72 63 68 69 6d |ss to th|e Archim|
|000063d0| 65 64 65 73 20 69 74 20 | 73 6f 6f 6e 20 62 65 63 |edes it |soon bec|
|000063e0| 61 6d 65 0a 61 70 70 61 | 72 65 6e 74 20 74 68 61 |ame.appa|rent tha|
|000063f0| 74 20 6d 75 63 68 20 6f | 66 20 37 50 6c 75 73 27 |t much o|f 7Plus'|
+--------+-------------------------+-------------------------+--------+--------+
Only 25.0 KB of data is shown above.
