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- Path: sparky!uunet!elroy.jpl.nasa.gov!nntp-server.caltech.edu!madler
- From: madler@cco.caltech.edu (Mark Adler)
- Newsgroups: comp.compression
- Subject: Re: Floppy-sized Zipping (was: when Zip is a LOT better ...)
- Date: 11 Dec 1992 20:58:24 GMT
- Organization: California Institute of Technology, Pasadena
- Lines: 21
- Message-ID: <1gavdgINN12s@gap.caltech.edu>
- References: <1992Dec4.033439.9038@midway.uchicago.edu> <ByuwI8.MA9@chinet.chi.il.us> <1992Dec11.185530.11564@rei.com>
- NNTP-Posting-Host: sandman.caltech.edu
-
-
- >> There is. For ZIP, there is a program called "ZIP Chunker" for MS-DOS
- >> which will take a large ZIP file and break it into floppy-sized chunks,
- >> where each chunk is still a full and complete ZIP file.
-
- Info-zip's Zip comes with a program that does the same thing called
- "zipsplit". It will also produce an index file, with the space for
- that file deducted from the first disk so it can be written there.
-
- It too requires that you have space for the unsplit zip file, and
- will not split entries across zip files in order to make full and
- complete zip files, as above. This latter restriction makes it of
- dubious use for backups, since you can easily have a zip entry
- larger than your media size. The (still in a gaseous state but
- slowly condensing) new PKZIP 2.x will define a way to split zip entries
- across zip files, and Infozip will implement it.
-
- zipsplit would be useful for making a multi-disk distribution.
-
- Mark Adler
- madler@cco.caltech.edu
-