For some reason, I’m having a ton of trouble. About half the blank discs I insert somehow turn out to be bad and causing the backup to “fail.” And if I accidentally re-insert a disc that previously failed, I get stuck in an endless loop of “This is not a black disc,” but it never ejects that disc so I can insert a different one. What’s up?
I have the exact same problem, damn irritating. I solved the problem by backing everything up to an external hard drive. And then backing up the entire drive to disc without using itunes, not the best solution but better than nothing.