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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!mcsun!sun4nl!ruuinf!accucx!nevries
- From: nevries@accucx.cc.ruu.nl (Nico E de Vries)
- Newsgroups: comp.compression
- Subject: Re: New PKZIP expected to ship week of Jan 4 1993
- Message-ID: <3542@accucx.cc.ruu.nl>
- Date: 24 Dec 92 15:54:37 GMT
- References: <Bzr1x2.9FM@mentor.cc.purdue.edu> <1992Dec24.132047.9908@maths.tcd.ie>
- Organization: Academic Computer Centre Utrecht
- Lines: 50
-
- (Timothy Murphy) writes:
- >(Greg Flint) writes:
-
- >>I just logged off the PKWARE BBS where I read a message dated 23 Dec 92
- >>that repeated that the new PKZIP was in final beta, but then added that
- >>PKWARE expected to start shipping the week of 4 Jan 93.
-
- >Are PKZIP/PKUNZIP compatible with ZIP/UNZIP?
-
- According to PKWARE PKZIP 2.0 is upwards compatible with ZIP/UNZIP 1.9. In
- a week or two we will know for sure.
-
- >Why do we have all these compression programs?
- >In my experience the difference between them is marginal.
-
- Why are there 1001+ word processors, spreadsheets, databases, operating
- systems etc? Competition is the magic word. MS-DOS only got a real
- improvement after the Digital Research DOS release. Many improvements
- in PKZIP have been derived from LHarc, LHA and ARJ (whose improvements
- hev been derived from PKZIP too). And of cause they all try to do
- better than the rest.
-
- >The trouble caused by the multiplicity of programs
- >vastly outweighs -- IMHO - any advantage gained
- >by minuscule improvements in compression.
-
- PKZIP 1.10 has been around very long. Only now PKZIP 2.0 arives. ARJ has
- had more updates but those have been downwards AND upwards compatible with
- older versions (proves the quality of the design BTW). ARJ 3.0 will be
- the first major release of ARJ with new technology not downwards compatible
- but I understood ARJ 2.40 WILL be capable of decompressing ARJ 3.0 files.
-
- >Please don't produce any more programs!
- >There is absolutely no need for them.
-
- Well I am working very hard on yet another one and so are many others :-)
- It is you privilige as customer to profit from them but also to ignore
- them. I personally think competition and improvement are very important
- components for a healty software industry.
-
- >Timothy Murphy
-
- Nico E. de Vries (nevries@cc.ruu.nl) |------------------* AA III PPP
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-
- To get (many) ==> LOSSLESS DATA COMPRESSION SOURCES <== get lds_10.zip at
- garbo.uwasa.fi /pc/programming. Make files for Borland C are included.
-