I have a lite on 16x +/-R DVD burner and have burned several movies. All of a sudden I'm not able to burn a complete movie anymore. I use Nero at 8x and the entire process is completed with a sucessful burn message but when I put the movie in my stand alone it stops anywhere from 2 minutes to 30 minutes and starts over. I don't see any visible scratches on the disc. This is the same method I've always used. Nero for previously burned movies and Shrink and Nero for purchased DVD's.