I have made backups of some of my movies and most work fine using dvd decrypter, dvd shrink, copytodvd but on a couple of them i seem to have problems with the menus being very choppy (daredevil) i dont know why it works fine on all the other movies of about the same size i have tried. I have no idea what is causing this i was thinking it may be a result of a bad shrink but i dont know....anyone have a clue???