@ rickyjm , did you miss where the OP said, “I tried using the mp3 setting on one rip and sync and got the same error.”?
Another possibility. Since this seems to be happening with placing files on the external memory card, the card itself could be faulty, counterfeit or Class 10 (which is incompatible with SanDisk mp3 players). Or any number of other issues, of which we cannot provide suggestions without further informaton and details from the OP.
