CloneCD 2852 didnt clone it

my kids, little darlings that they r managed to break my Sonic adventure 2 cd (nice of them) so i thot no probs & borrowed a backup
but when i tried to copy it the disk wont play in my DC even though the copy completed successfully i set it up the same way as i would for a psx copy i #####ed the boxes for
read:
read subchannel data from data tracks
read subchannel data from audio tracks
write:
dont repair subchannel data

can anybody tell me where im goin wrong