Hello Andrew, Friday, June 29, 2007, 10:39:28 PM, you wrote: > I'm writing a whole bunch of data compression programs. me too :) but i never used Haskell for compression itself, only for managing archives. fast compression routines are written in C++ http://www.haskell.org/bz -- Best regards, Bulat mailto:Bulat.Ziganshin at gmail.com