I have several ogm files I want to convert to avi's. They all play without a hitch in media player. But I have been unsuccessful in all of my attempts to convert the files to avi. Here are the steps I have taken thus far: 1. Convert with graphedit: Sound/Video out of sync by the end of the movie 2. Use decompress.exe: Sound/Video out of sync by the end of the movie 3. Use tmpegenc: Sound/Video out of sync by the end of the movie 4. Use ogmdemuxer: gets half way through and terminates with an invalid page error 5. Use VirtualDub Mod/NanDub: gets half way through and terminates with an invalid page error It looks to me like there is an invalid frame in the movie about halfway through. This is where the sound/video gets out of sync or the conversion fails. I saw a thread on removing invalid frames in avi's, but is there a way to do this for ogm files?