hi all (just something i found on freshmeat) mpeg-4 structured audio : development tools http://www.cs.berkeley.edu/~lazzaro/sa/index.html not an audio compression tool as such, but a part of the upcoming mpeg4 standard which is sort of like a midi/mod file description (a *very* simplified explanation) later mike -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )