originally i started with Ogm files with the video at 23.976 fps and using virtualdubmod i changed the framerate to 25 fps with the video ad audio. so at this point there is no de-syncronisation because the video and audio files have the same length (i checked this). when i created the dvd menu and all then created the vob files, i checked the files with power dvd to test it and the audio went out of sync (i was so dissapointed cos i worked so hard to get nowhere). anyone had this problem and know what's wrong?