I have an .mp4-file, encoded from DVD with Handbrake. Now I'd like to add an extra audio track (with another language) to the .mp4 file but I haven't found a good tool to do this. Any suggestions?

Bitcartel Software has released RAW, which allows users to record Internet audio as MP4-AAC files. The software supports audio output from RealOne Player, QuickTime, MIDI, Flash and MP3, M3U and ...

I'm converting DVDs to .mp4 from unencrypted discs (we've licensed the right to do so) on a Mac. I've explored many tools for doing this (as forum regulars can probably attest..thanks guys!) and ...