I have been using DVD Decrypter with DVDshrink and\or DVDFab to backup dvd's, and NERO 6 to burn them (UDF\IFO format). The Backed-up DVDs play fine on my Stand alone DVD player, but many do not play on my PC DVD-ROM using Power DVD. Either it stalls when selecting "Play Movie" from the main menu, or gives an error when changing particular chapters. After compressing or splitting the DVD to be backed-up I test it with PowerDVD before burning, and they seem to work before burning.
Hey kojak, best way to burn Shrink files with nero is to use the Express part, DVD video section. This opens and already makes the AUDIO_TS and VIDEO_TS folders you need for proper dvd playback. Just add all the Shrink backup files INTO the VIDEO_TS folder and burn. AUDIO_TS folder stays empty. Jerry