I am using a madDog MD-16xdvd9 to burn the movie and a liteon dvdrw cdw 411s to read the movie. I am using Anydvd ver. 188.8.131.52 and Clonedvd ver. 184.108.40.206. Every time I try to make a back up of the Holiday I get this message "File OF/video_ts/video_ts.ifo1393 The disk structure is corrupted and un readable Please be sure that all required files are available and try again." I would say it is the disk but this is the second disk that I have tried. I tried to get all the.ifo files but I can't open folder. It gives me an error stating "F:/video_ts is not accessible The disk structure is corrupted and unreadable." Pleas help!