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# Never!
PNG, JPG or nothing!
(I helped save b3ta! Dr Scunner She’s a he, technically, but she’s scalding hot, Tue 5 Jun 2007, 15:28, archived)
# The last Unisys LZW patents expired in 2004
Thank fuck
(I helped save b3ta! fuscous, Tue 5 Jun 2007, 15:32, archived)
# woo!
(Lempel-Ziv-Welch) A data compression method that stems from techniques introduced by Jacob Ziv and Abraham Lempel. LZW has been used in many hardware and software products, including V.42bis modems, GIF, TIF and PDF files and PostScript Level 2. The LZ77 method creates pointers back to repeating data, while LZ78 creates a dictionary of repeating phrases with pointers to those phrases.

/geek blog
(I helped save b3ta! Dr Scunner She’s a he, technically, but she’s scalding hot, Tue 5 Jun 2007, 15:34, archived)