ss> I don't have any documents on it since I saw it in Dr Dobbs September ss> 1996 issue, but you could get source for it at www.drdobb.com (I think ss> that's the address). actually that's http://www.ddj.com/ , with code mirrors at ftp://ftp.mv.com/pub/ddj/ Also for a good report on compression look at DDJ, January 1996. Chris