From: nan@matt.ksu.ksu.edu (Nan Zou) Subject: Re: how to read .lzh/.tpz for non-SLS user Date: 14 Feb 1993 01:31:38 -0600
wirzeniu@klaava.Helsinki.FI (Lars Wirzenius) writes:
>nan@matt.ksu.ksu.edu (Nan Zou) writes:
>>Does it really? They may both have "zip" in their names but my
>>understanding is that their algorithms are not exactly the same, similar
>>maybe, but not the same.
>I haven't checked the source, but the gzip README says that it uses
>the same LZ77 algorithm as is used in zip 1.9. The file format,
You're right, I looked through the gzip docs and it did mention the
usage of the LZ77 algorithm, but when I ran some tests gzip usually
achieves a little higher compression ratio than Info zip, gzip probably
uses some enhancement for the higher compression ratio (~5%).
>however, is compatible, although gunzip has some limited support for
^^^^^^^^^^ Perhaps you mean incompatible?
>zip files.
-- Nan