Archive of UserLand's first discussion group, started October 5, 1998.
GIF misinformation (Re: Burn all Gif, Unisys ComeBack !!!)
Author: Dave W. Smith Posted: 9/17/1999; 12:28:05 PM Topic: Burn all Gif, Unisys ComeBack !!! Msg #: 11241 (In response to 11206) Prev/Next: 11240 / 11242
PNG may well be a superior format, but let us please not play loose with facts in the name of that cause.
Unisys holds a patent on the LZW encoding, which is commonly, but not necessarily used in GIFs. The GIF specification also supports run-length encoding (RLE), which yields larger files than does LZW. A number of packages side-step the Unisys patent by using RLE.
This was recently hashed over in slashdot, complete with copies of letters from Unisys lawyers that clarify their position.
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