I have the latest version of dvdnextcopy 2.7.8.2. I don't see a software compatibility box, but my problem is that certain dvd's cause the program to crash. I get a windows message dvdnextcopy main client has encountered a problem and must close. I'm running windows xp and it is updated. the folks @ dvdnextcopy suggested I find and run machinist2.dll and dvd43, which I have done. I see the warner bros. and disclaimers in the preview window..than crash..this only happens on 2 dvd's..thoughts? I saw something about another 3rd party add on called sly 'something'. I own these dvd's so there is nothing illegal about my attempting to make backup copies..thanks for your input!