Problem copying a copy(sorry, backing up a back-up)

There is no reason why you should not be able to copy a copy. I would concentrate on CloneCD - cracked serials are dodgy and the Gestapo now know where you are!

Please set Abort on Read Error. Even though the original copy might boot, there could still be a copying problem. To prove this out when copying via the HDD, do this setting; that doesn't cost a coaster but it will prove out the disk.

Also, you could try feeding CloneCD from ClonyXL to ensure you have the right parameters set for CloneCD.