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Article #562

PKZIP vs ARJ. was Re: PKZIP 2.04c

#562
From: Robert Schmidt
Date: Tue, 12 Jan 1993 16:10
33 lines
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In article <1993Jan7.230331.14923@miavx1.acs.muohio.edu>, jdcarmack@miavx1.acs.muohio.edu writes:
> 
> On the other hand, ARJ has been shown to beat out even the new PKZip on
> certain files.  Usually, however, the results either way (so far) have
> been negligible.

That's my experience too, and I'm in great pain trying to choose between
arj's ratio's and pkzip's speed...

Another thing:

Comparing the multiple volume capabilities of ARJ and PKZIP, I find that
ARJ's implementation is much better:

* it allows volumes of userdefined sizes in addition to autodetect

* it allows you to shell to DOS between volumes (!!)
  This is a nice feature!  Consider if you suddenly run out of disks,
  and need to search for a disk or two to sacrifice!

* it stores all info about the volume in the file itself.
  PKZIP destroys the volume label, which renders PKZIP unusable in my
  disk archival system, which relies on the disk #ID being in the label.

* I handed PKZIP a full disk as a volume disk.  PKZIP created a 0-size
  file, and overwrote the volume label.  When I tried uncompressing the
  resulting multivolume archive, PKZIP of course aborted with 'error
  in zipfile'.

If only ARJ wasn't so slow...

Anyway, cheers,
Robert Schmidt
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Message-ID: <1993Jan12.161010.2051@ugle.unit.no>
Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sunic!ugle.unit.no!alkymi.unit.no!robert
References: <1993Jan6.053553.9663@vela.acs.oakland.edu> <1igcgbINNiil@crcnis1.unl.edu> <1993Jan7.052513.2939@netcom.com> <1993Jan7.062312.8127@csus.edu> <1993Jan7.230331.14923@miavx1.acs.muohio.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!sunic!ugle.unit.no!alkymi.unit.no!robert
From: robert@alkymi.unit.no (Robert Schmidt)
Subject: PKZIP vs ARJ. was Re: PKZIP 2.04c
Message-ID: <1993Jan12.161010.2051@ugle.unit.no>
Sender: news@ugle.unit.no (NetNews Administrator)
Organization: Norwegian Institute of Technology
References: <1993Jan6.053553.9663@vela.acs.oakland.edu> <1igcgbINNiil@crcnis1.unl.edu> <1993Jan7.052513.2939@netcom.com> <1993Jan7.062312.8127@csus.edu> <1993Jan7.230331.14923@miavx1.acs.muohio.edu>
Date: Tue, 12 Jan 93 16:10:10 GMT
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