Okay; see if you can help me with THIS: I followed these steps exactly (I even set the advanced preferences to Maximum Allowable Speed so it would read/use any speed of VD-R, and set the preference to Data Discs as well), and it worked just fine... at first. Mt 160g library is going to take something like 40 DVD-Rs... luckily, I had a bunch of them! And it worked fine for the first 20 DVD-Rs (which were 4.7GB 4X), BUT it would NOT work with the next package of DVD-Rs, which were 4.7gb 2X! It just kept spitting them out in seconds, telling me to insert another disc instead. So I went out and bought 50 brand new DVD-Rs (they were 4.7gb 8X) and it spit THEM out, too! What gives? additionally, now that I am roughly halfway through the back-up, even if I got it working again, will it just start all over again? Help!
RDWB
How To Back Up Your iTunes Library