I have one of these and have had nothing but bad luck... I only use it now for the dvd section of it. If I had it to do over I would have only purchased the dvd section and not both. It will do basic copies and that is about it. I have had it burn out twice and replaced twice. So, in about six months when the warrenty runs out. I guess I will be buying a dvd player only. But until then I will run it. Good luck in your quest. Check which ones are compatible with copying sd2 before you buy.
I just purchased GCE 8320B and am not sure if it is really compatible with copying sd2, yet.
But I think I have to turn off the cd media check using CloneCD, Then it should work. I can copy Comanche 4, but it is not a perfect copy as of yet. Still trying to get it quite right. But I can install the game, then use a no cd patch then I am in like flinnnnnn..... Good luck