Reply to CD issues

Twice now while I've been playing a gig I've had a track get an error, both times has been just as I've brought the track in, and as I'm bringing the other out. So obviously not a good time to be happening. This time I didn't have autocue on so it skipped to the next track which started playing and again this is obviously not good.
I use Sony CD-Rs and burn at 1x speed. Should I use different CDs? I take pretty good care of them and the only time I could see them getting scratched is sliding them in and out of the case but it'd be a pretty poor design if it did scratch them. Not sure what the error code is because I haven't had time to take that much notice.

Also while I'm here, I burned two CDs today of the same tracks, on both it only shows one of the tracks when I put them in the cdjs (tried them on both my 800s and the 1000s I was on toevening ) but it shows all of them are burned to the CDs when I put them in my laptop. I tried doing a third CD and its the same. Any ideas? Never had this issue before.