Hey guys I have noticed this from time to time when listening and watching concert dvd's. It only seem to happen with these discs and not movie disc. The problem is that the facial movements of the singer lag behind the words they are singing. It only happens every once in a while and then it doesn't seem so apparent or even there. Is this a dvd player problem or the dvd itself? I have a standalone player but it is not a $300 or more unit either. Please lmk what you think. Thanks