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SubjectRe: Idea for ZipMax improvement Reply to this message
Posted byRoman
Posted on03/15/04 04:28 AM



> > > > I'd like to see an optional logging feature that keeps track of which of
> the
> > > > used compressors was most successful in a given round of compressing.
> > > >
> > >
> > > And another idea...
> > >
> > > Let zipmax use the original zipped contents when it does the comparison
> > between
> > > the resulting zips. That way, if you already have a bunch of zip files that
> > > were optimized using zipmax and 7 compressors and you discover a new
> > compressor,
> > > you can just run it against that one compressor instead of all eight
> (original
> > 7
> > > + new 1).
> > >
> >
> > Where should zipmax see that it was already compressed by zipmax without using
> > flags inside the zip which increases the size? ;)
> >
>
> Maybe I'm confused about how zipmax works. A zip file is a collection of
> compressed chunks. Each chunk being a file, possibly compressed with a
> different method supported by the zip format. I thought that zipmax took the
> best compressed chunks from multiple zipped archives and combined them into a
> new zip archive. If I'm correct, and this is how it works, then wouldn't it be
> possible to do the following...
>
> 1. unzip an archive
> 2. re-zip the archive with a given compressor
> 3. compare each of the compressed chunks in the new archive with the same
> compressed chunk in the original archive. when a chunk in the new archive is
> smaller, replace that chunk in the original archive with the smaller chunk.
>


Well...zipmax already does that ;)

Roman Scherzer
ClrMamePro

-
Entire Thread
Subject  Posted byPosted On
*Idea for ZipMax improvement  krick03/14/04 12:03 PM
.*Re: Idea for ZipMax improvement  Roman03/14/04 12:51 PM
.*Re: Idea for ZipMax improvement  krick03/14/04 12:12 PM
..*Re: Idea for ZipMax improvement  Roman03/14/04 12:57 PM
...*Re: Idea for ZipMax improvement  krick03/14/04 02:40 PM
.....Re: Idea for ZipMax improvement  Roman03/15/04 04:28 AM
....*Re: Idea for ZipMax improvement  [Pi]03/14/04 06:11 PM