Mark all original movie disks are 99% of the time dual layer and called dvd9 the software generally rips the disk and then compress it down to fit on a single layer disk known as dvd5... Ever since dvd writers have been available the copying software has been available too, most burning software needs a decryptor either a program that rips and decrypts the disk to your harddrive or the program I mentioned anydvd does it on the fly, no copying to HD first.... then just burn with your favourite burner.. I like clonedvd because its fast and easy... but its illegal to sell these two types of progr