I used smartripper to rip three movies to my hard drive on my brand new Dell 8300. I renamed my vob's to mpg's, used Sonic My DVD to build the chapters and such for the first movie. No problem, burned no problem. Now, the other two and a subsequent third are not working correctly. When I insert the movies into Sonic My DVD it adds all the files but bugs out before it begins to build the movie and gives me some kind of :unknown error. All it will add is the first file. And builds all the chapters for the first .mpg, No more. I can't seem to figure out what the problem is. I renstalled Sonic and smartripper and still haven't been able to figure out the problem. Any suggestions?