How can I avoid the phase difference between sound track and image on DVDs burned with InterVideo WinDVD? As the DVD is played on a regular DVD player, a time lag between image and sound becomes more and more pronounced so that after an hour of playback there is a significant lag of several seconds between image and sound track. Watching DVDs created from your own video files becomes really annoying as time progresses. The sound comes seconds earlier than the image, so sound and lip movements are totally out of synch. I'd be grateful for a tip of how to avoid this annoying problem!