Hi: I use a tool called mpgtx to demux MPEG files. This usually gives me an MPEG video stream and an MP2 audio stream. This is good because it means no re-encoding if you only want the sound. If you need it as MP3 then you can re-encode it as you see fit. Since I installed it as a Debian package, I don't know where to download it from, maybe try a search for it on Freshmeat. Geoff.
