my wife bought a new asus laptop with vista and a free upgrade to windows 7. she has since done the ugrade. here's the problem. windows media player says there is no disc loaded when trying to play a dvd. it only says this when playing a dvd that comes from netflix or a dvdr that has a movie from netflix burned on it. my desktop with windows 7 plays them just fine. if i buy or rent the SAME movie somewhere else it plays just fine. any help would be great!!!!!!! thanks