Ow.

Have you tried doing a disk check (FSCK) by hand? That might fix the problem.

Hmmm... In all my time playing with the 80s, I have never had the player do a disk check during sync. Most of the music I have is already on the player, and I am in shell often enough that I do the checks there. I never tested this bit... I wonder if the emplode disk check itself is sick... Hmm... Time to test...