Re: bzip2 -- no longer non-us?
> http://www.muraroa.demon.co.uk has a new version of bzip (a
> compressor that is stronger than gzip) -- the old one (0.21) was in
> non-us because it used arithmetic coding which was pattented in the
> us; the new one, called bzip2, is:
> o Patent-free! (I hope). bzip-0.21 used arithmetic coding; bzip2 uses
> Huffman coding, which is generally regarded as non-problematic from a
> patent standpoint. Both programs are based on the Burrows-Wheeler
> transform, but, as far as I know, that's not patented either.
> and a few other cool things.
> This could be potntially useful in boot kits in particular...
Especially since it seems to compress better, at least for text (I
haven't tried binaries yet). A couple of examples that I have tried:
mail.tar (a bunch of old mail folders)
Uncompressed 4 014 080
gzip -9 1 190 712
bzip2 -5 943 674
bzip2 -9 916 924
gzip 8 446 528
bzip2 -9 6 863 854
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