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From: colas@lemur.inria.fr (Colas Nahaboo)
Newsgroups: comp.sys.amiga.misc
Subject: Re: .ZOM archives -- DONT USE IT!!!
Message-ID: <11030@mirsa.inria.fr>
Date: 23 Apr 91 09:46:59 GMT
References: <1991Apr22.190710.13450@aucs.AcadiaU.ca> <29668@rouge.usl.edu>
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In article <29668@rouge.usl.edu>, cac5961@rouge.usl.edu (Castor Christian A)
writes:
>     I have a question, though.  When I finished compressing the Walker_I
> demo, the zoom program GURU'ed my amiga (at the moment I tried to
> quit it).   Anyone has experienced this problem?

The zoom program is extremely unreliable, please don't use it!
I got gurus with on a lot of occasions, crunching or decrunching.
Worst case yet, on some occasions it crunches fines, then guru when
decrunching!
It is a pity since Zoom is faster than DMS at low compression, and at the same
more efficient than the highest compresion mode of DMS. But for now DMS is still
the only valid choice for disk archiving... Nobody seemed to have any problem
with dms. If zoom comes out with a bug-free version, I will register it,
otherwise I will have to register for dms.

Apparently, zoom GURUs on disks containing already compressed files, such as
demo or games. Apparently the Zoom programmer wasn't aware that compressing
compressed data makes it expand, and may be overflowing some buffers...

So:

DO NOT USE ZOOM v4.1!!!

PS: do you know if the zoom author is on the net?

-- 
Colas Nahaboo, colas@sa.inria.fr, Bull Research, Koala Project, GWM X11 WM
Phone:(33) 93.65.77.70(.66 Fax), INRIA, B.P.109 - 06561 Valbonne Cedex, FRANCE.