My software, 4.0.3.8 works fine, works with almost all movies and is much quicker than using Shrink and then a copy program. I wonder, however, what to do, other than go to a newer program, when I need to do a clean install on this PC or try to install DVDXcopy on another PC. It will always ask for a registration key and it is hidden in the registry somewhere. Is there really no one out there with the smarts to identify the location of this key? Larry