I'm looking at this tutorial: http://mightylegends.zapto.org/dvd/dvdauthor_howto_surround.html When muxing all the 5.1 channels together, the author recommends to add a 15ms delay for the rear channels. Is that correct? I thought it's the amplifier's job to do that. My home theater system adds a 10...12...15ms delay anyway (adjustable). I believe, if i add another 15ms in the AC3 file, it will be too much. What do you think? Also, the tutorial is based on the multimux utility: http://panteltje.com/panteltje/dvd/ Is there any other command-line tool that performs the same functions like multimux, or is it pretty much unique? -- Florin Andrei http://florin.myip.org/