Mark Adler wrote: > On Mar 27, 2007, at 7:43 AM, Greg Roelofs wrote: >> Just use ".zlib", eh? > > Aren't there still systems out there that limit the extension to > three letters? There are also systems that won't allow multiple periods, e.g. .tar.zlib, but that won't stop most of us :) What about .zc for zip-compressed?