home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Chip 1997 April (Special)
/
Chip-Special_1997-04_cd.bin
/
sony
/
cdu77e
/
read.me
< prev
Wrap
Text File
|
1995-07-28
|
10KB
|
260 lines
===============================================
Comments on "Device Driver & Utilities Ver. 1.7
===============================================
1) Applicable model list:
* The utilities in this diskette are applicable to the following models.
1. CDU50E
2. CDU55D
3. CDU55E
4. CDU75E
5. CDU76E
6. CDU77E
2) Improvements:
* ver. 2.22a-->2.23a
2.23a is a tentative version and was not released except for evaluation
purpose.
Option "/g" is added to solve the following problem.
In the case of connecting only Sony drive to the ATA interface of the
Green PC as the master, the device driver returns "Drive not Ready"
for any command from the host computer after the host computer enters
suspend Mode.
* ver. 2.23a-->2.24a
a)Media Player in Windows3.1 shows an error message, when the
"Next track" button is clicked during the drive plays (or pauses to play)
last track number of Audio disc.
b)If an audio disc is inserted after playing Photo CD by Multi CD Player
of Windows3.1, that audio disc is not recognized correctly.
c)CDU77E can not play Japanese "Peter and the Wolf" Windows version
correctly.
Please use 2.24a or later CDU77E.
3) Device Driver information
* To find out the version level of the device driver you are using, there
are mainly two ways, which are....
1. Use either debugger or dump software to see an ASCII information in
the device driver where you will be able to find the version level.
2. Or, watch when the device drive is loaded during boot stage of
MS-DOS system.
* However, above method may not be easy for some users, therefore the
following information is added to help our customers identify the
version level of each device driver for our ATAPI CD-ROM drive.
With the information given below, the version level can be identified
based on the file size and the time stamp information.
ATAPI_CD.SYS 22016 94-07-22 16:04 <<=== 2.00a
ATAPI_CD.SYS 22016 94-07-22 16:04 <<=== 2.14a
ATAPI_CD.SYS 24144 94-10-28 20:14 <<=== 2.16a
ATAPI_CD.SYS 26048 94-11-10 12:14 <<=== 2.17d
ATAPI_CD.SYS 26128 94-12-05 19:07 <<=== 2.18b
ATAPI_CD.SYS 26848 95-01-08 20:26 <<=== 2.19c
ATAPI_CD.SYS 26864 95-02-14 11:03 <<=== 2.20a
ATAPI_CD.SYS 28976 95-04-12 13:45 <<=== 2.22a
ATAPI_CD.SYS 29616 95-07-14 09:39 <<=== 2.24a
4) Comments:
* This floppy disk contains an installation software "INSTALL.EXE"
version 1.00a.
* This device driver (version is 2.22a) supports "CD Plus" through
"SMARTDRIVE", which was not possible with the Version 2.18b.
* MSCDEX is not included because of licensing agreement with Microsoft.
MSCDEX.EXE is included in DOS 6.x, but also it is possible to
download from Microsoft BBS.
* Please make sure that MSCDEX.EXE exists under "C:\DOS", then execute
"INSTALL.EXE".
* This floppy disk contains the following files
1) Device Driver : ATAPI_CD.SYS 2.24a
2) Install.Exe : INSTALL.EXE 1.00a
3) Utility : EJECT.COM
4) Ditto : LOCK.COM
5) Ditto : UNLOCK.COM
6) Ditto : CDPLAY.EXE
7) Ditto : LOAD.EXE
8) Ditto : README.TXT
5) Installation
After installation using "INSTALL.EXE", the following lines are
added in "Config.sys" and "Autoexec.bat", which are....
< CONFIG.SYS >
Device=C:\DEV\ATAPI_CD.SYS /D:mscd000 /i:0
< AUTOEXEC.BAT >
C:\DOS\MSCDEX.EXE /D:mscd000 /V /M:12
6) Option for the device driver, ATAPI_CD.SYS
a) /D:<device_name>
* Device driver needs to have a <device_name> listed on the command
line to MSCDEX following the /D: switch. MSCDEX uses this parameter
to locate device driver. Names used must match those used for the
/D:<device_name> parameters for each device entry in "AUTOEXEC.BAT".
* The installation software specify the device name as "mscd000",
which appear in "CONFIG.SYS" as well as "AUTOEXEC.BAT".
b) /I:n
* This option is related "Media Change Command" and "Illegal
disc change" specified in MSCDEX specification. This is required
to notify the system that disc has been changed so that this
information can be used in various ways. For example, initialize
a buffer memory with directory information, etc.
On the other hand, there are several ways in treating this
information. Therefore, we added an option "/i:n" so that
user can choose an appropriate setting.
* No option at all.
Without this option, the drive returns "illegal media change",
if the drive tries to access CD-ROM without disc in the drive,
which will be, in turn, expressed as "Not ready error reading.."
and displayed on the screen.
This will not be cleared once, even after a CD-ROM disc is
inserted, but second retry will clear this message.
* n=0
Our installation software will set this option, because we feel
this is more natural than default setting which is specified by
MSCDEX specification.
Note : Some major SCSI products vendors have this setting as
their default setting.
* n=1
The driver will keep returning "Media Change Status" until
"Media Change Command (A command which is to check if the media
is changed or not) is executed. During this stage, the system
will keep displaying the following message on the screen, even
after a media is loaded.
Not ready error reading drive X:
Abort, Retry, Ignore?
(* X: Drive letter of CD-ROM drive)
* /i .... Same as "/i:1"
c) /p:XXX
When user specifies one of the following address, like a /p:xxx,
the device driver selects the only specified port address.
Primary /p:1F0
Secondary /p:170
Tertiary /p:1E8
Quaternary /p:168
F.D. board /p:160
(Futuredomain)
However, the F.D. board's address(160H) and Quaternary's address(168H)
can not use together.
Without specifying this option, the device driver can select the drive
by "auto-detect" mode in any of the Primary, Secondary, Tertiary,
Quaternary, and F.D. board.
d) /g
In the case of connecting only Sony drive to the ATA interface of the
Green PC as the master, the device driver returns "Drive not Ready" for
any command from the host computer after the host computer enters
suspend mode.
Option "/g" is added to solve this problem.
7) Option for MSCDEX.EXE
a) /D:<device_name>
* Device driver needs to have a <device_name> listed on the command
line to MSCDEX following the /D: switch. MSCDEX uses this parameter
to locate device driver. Names used must match those used for the
/D:<device_name> parameters for each device entry in "CONFIG.SYS".
* The installation software specify the device name as "mscd000",
which appear in "CONFIG.SYS" as well as "AUTOEXEC.BAT".
b) /M:<value>
This option switch determines how many sector buffers MSCDEX allocates
when it installs itself. The larger this value is, the more sector
cache entries are available and the less MSCDEX will have to read
directly from the CD-ROM drive. So, please increase if you require
better performance, but it will take system memory space. It is
also possible to reduce the value, but the minimum of 4-5 is
recommended. If this value is too small, the drive will reread
more often which will deteriorates drive's performance.
c) /V
This is "verbose switch". /V asks MSCDEX to print additional
information about memory usage during initialization. We recommend
to set this switch.
d) Others
There are few other switches which are not set using "INSTALL.EXE".
The following explanations are given for users who need to
customize the CD-ROM system.
* /E
This is an additional switch, which tells MSCDEX to use expanded
memory if it is available.
* /L:<drive letter>
This option is prepared for some software that require a specific
drive letter for the CD-ROM drive so that the application software
can treat CD-ROM drive without any problem.
Because "INSTALL.EXE" does not set this switch, you will have to
edit your AUTOEXEC.BAT file if this switch is needed. For example,
the following assigns CD-ROM drives starting at drive letter L:,
you need to add switch "L" as you can see as follow.
MSCDEX /D:MSCD001 /L:L
* /K
The /K switch causes MSCDEX to look for a Supplementary Volume
Descriptor that identifies a shift-JIS Kanji volume for Japanese.
* /S
The /S switch tells MSCDEX to patch MS-DOS to allow sharing of
CD-ROM drives on MS-NET based servers.
* Note: MSCDEX is a product of Microsoft Corporation
Personal Storage Products Dept. No.1, ü@
Computer Peripherals Div., Components Company
Sony Corporation (c)
As of July 28, 1995