Has anyone had this problem where a certain movie just won't play on your PC but you know the Disc is fine? I have played this movie on my DVD player. I have the movie "Kates Addiction" with Kari Wuhrer. 99.9% of DVDs that I have tried to play on my PC have played fine. My Windows Explorer will not even see whats in my DVD drive. My DVD Player software, PowerDVD will say "no disc". I would like to back up this movie but nothing sees the DVD in my drive. What may be wrong?