Agree with Hun's reasoning and advice, and a big ditto on trying an rw until this is resolved. Also, a few of us (likely, more than a few), have noted that backing up season discs in the "Copy season disc fully" mode (Gold), is much more predisposed to problems. I think larry3030cd said it best, it really is "hit or miss". You didn't say what mode you were using , so this may not be applicable. Anyway, I've done quite a few bkups with good results by choosing "Full Disc" in gold. With 4 episodes, like "24" or "the Pretender", for example, the split to two discs is perfect. With odd #'s however, such as Nip Tuck (three/disc), one eipsode gets split. Aside from the annoyance of swapping out the disc, there is no problem with navigation or play. Of course, you also have the option of burning to a DL.