the itunes library file cannot be saved.An unknown error occurred (-48)
i tried changing folder and file permissions but that didn't work. And my computer has been starting up really slowly since this started, and has been sluggish.(Also i cannot get to apple.com, nor the itunes store, i wonder if it has something to do with genius. in fact ill turn it off see if that helps)
also i am using itunes 9.0.1 on a 2 ghz aluminum macbook, and i recently upgraded my HDD, but it was working before the problem started.
Solved... here is how...
Had the same issue. My iTunes Library is located on a NAS and after a recent restart, I got the 13014 error when attempting to start iTunes. Following the suggestions in this thread, I deleted the following two Genius related files in my iTunes Library folder: