I CAN COPY MOST DVD'S BUT THERE ARE SOME THAT WILL NOT START AND I GET THE FOLLOWING MESSAGE UNABLE TO READ VIDEO FILES FROM D:/VIDEO_TS D:/VIDEO_TS/VIDEO_TS.IFO: UNABLE TO OPEN FILE. THE DEVICE IS NOT READY PLEASE BE SURE THAT ALL REQUIRED FILES ARE AVAILABLE AN TRY AGAIN. (DETAILS) FILE 0D:/VIDEO_TS/VIDEO_TS.IFO21. MY FRIEND HAS THE SAME COMPUTER AND DRIVES AND HAS NO PROBLEM COPYING ANYTHING WITH ANYDVD. IF ANYONE CAN FIGURE THIS OUT I WOULD REALLY BE HAPPY.