Dear Kiste, Thank you for the quick reply. I am interested in what you suggest, and it sounds like you have a macro that does this. Have you investigated modifying the mplayer code to get higher precision timing information? Cheers, Paul > Date: Friday, June 4, 2010, 6:19 AM > > Hello, > > > > I am trying to use mplayer to play a DVD and mp3 track > together (so both > > DVD and mp3 audio, with dvd video). I need the mp3 and > dvd to stay in > > sync. Can I play both at once in one instance of > mplayer? (I know they can > > play together in two instances.) If so, will mplayer > keep an internal sync > > between the two? If not, is there a way to sync the > two instances? > > It's possible, but you can not expect a lot of help from > mplayer. There's > the output of the current playing position on stdout. Read > that output > from both mplayers, compare the played time, and if it is > out of sync, > speed up or slow down one of the players. It might sound a > bit crazy, but > it can be done. I've got it to keep accuracy better than > 0.1 seconds, > which in general is quite ok. > > Greets, > Kiste