The movie causing problems is "Collateral Damage". (Sharereactor Release - dated 24.06.2002 http://www.sharereactor.com/release.php?id=1895 ) ==> Short description: Mplayer fails to maintain a/v sync in this particular divx-encoded avi. If you can confirm or deny the problem, please drop a quick note to Mplayer version used: > MPlayer CVS-020630-20:50-2.96 (C) 2000-2002 Arpad Gereoffy (see DOCS!) ==> Long description: The a/v sync of the movie is off right from the start: A: 10.0 V: 6.9 A-V: 3.111 ct: 0.688 166/166 11% 10% 1.3% 0 0 0% If you try to seek, audio and video seems to be in sync (A-V stays around 0), but it isn't true -- a/v is still off. Playing with -nobps, -ni, -mc 0 and friend does *not* help. "xine" cannot play the movie either -- a/v is off, too. Under Winblows, the movie playes fine with "Zoomplayer", "BSPlayer" and the standard Winblows Mediaplayer. If you dump the audio with "-dumpaudio -dumpfile cd.mp3", you will notice that the resulting mp3 file is invalid: > [root@michael tmp]# mplayer av_sync_problems_right_from_the_start.avi -dumpaudio -dumpfile cd.mp3 > [...] > [root@michael tmp]# ~/devel/mp3check-0.4.4/mp3check -e cd.mp3 |more > cd.mp3: > 335232 bytes of junk before first frame header As "mp3check" mentions, there are 335232 bytes of junk before the first frame. The file is unplayable with "xmms" or "mpg123" for example, but "mplayer" can play it like this. If you fix the file with > [root@michael tmp]# ~/devel/mp3check-0.4.4/mp3check --cut-junk-start cd.mp3 > cd.mp3: cut-junk-start: removing first 335232 bytes, retrying > cd.mp3: cut-junk-start: no junk found you can play it with every mp3 player around. But even now, you cannot play the movie and the extracted mp3 file in sync: If I try, > [root@michael tmp]# mplayer -audiofile cd.mp3 av_sync_problems_right_from_the_start.avi a/v sync is still off like on the tries above. So I think that this is no problem with the junk at the beginning in the end, but mplayer fails somehow here. 8-( If you can confirm or deny the problem, please drop a quick note to Thanks for looking Michael.