bump,
I have spotted the encoding error Johnny boy pointed out, so he isn't a complete freak (

). However, very unlucky to get it on his first attempt.
I have been using DVDcopy2 ever since it was posted here and its got vastly, vastly superior quality in many cases, and I have done well over 30DVDrs (very liberal number) in it. All of these seems to be fine, but I just watched my Rules of Attraction DVD9-->DVDR5 ripped in dvddecrypter in filemode and then put through DVDcopy2 and it has the same little white encode errors at random times (nothing big or as john's [infact it doesn't look the same, but they are white)). Anyway, because of the vast quality advantage of DVDcopy2 [of course not upto CCE's standards but very quick and easy] it would be stupid to give it up 1bad out of a batch of over 30, which is actually a better ratio than I have with both pinnacle and CloneDVD [pinnacle sometimes makes unplayable discs and clone shocking video and/or encoding errors].
I also had one iso that for some strange reason came out too big buy about 100mb
Anyway, there's a simple thing to do, use DVDdecrypter to rip in filemode, pass it through DVDcopy2. Then you load up powerDVD, and set the source to "DVD media on hdd" or whatever the option is called.
Look through the menus and set the movie rolling. Using your mouse scroller to set it to ~1.5x playback and keep a keen eye on the movie whipping by. After a minute of this, scroll upto 2-32x and watch until satisfied. That will make sure you got no encode errors, which are a freak occurance. I do not condone the use of nero. I've found its better to take a freeware approach. Use imgTool to "burn" the vob files into a .nrg, then use DVDdecrypter to burn. Fast, simple, and highly compatible
I think this goes to show no DVD transcoding program is anywhere near perfect, just some are better than others
I'm wondering however, if it has anything to do with system resources or anything, or if it just... well does it at random times.