Have u checked if your SCSI interface works??? I'm telling you these because I had a Yamaha 4416S and it worked fine with CloneCD up to one week ago...then it began to lock the whole system as I tried to copy any cd. Now I just bought a Plextor PX-W 1210A and I have no problem...try also to use (if you don't have it) the last CloneCD version (2.8.3.1)...hope this could help
CIAO
Robaerus