Ok heres my problem My nec 3520a dvdrw will burn data and movies it will read my cd's audio and it will read my burned dvd data backups but it wont read dvd movies.I tried watching a few movies in it and it wont read the dvd movies. I tried 5 different original movies and it wont play them .I then tried a backed up dvd and it wont play that either. i have power dvd,windvd,wmp,and divx and i cant watch a dvd .It won even show the original dvd in my computer