CDG HD to HD to CDG Failure

[Glenn&Cyndy]

i have 4 HD's on my computer. My 3-4000 CDG's are on 3 of them. When I tried to tidy things up I ran into this problem. CDg's will rip to HD and burn to CDG OK. When I take blocks of these files and copy paste them to one HD to another HD and then try to burn back to CDG I have mostly erors in the grafics and a few errors in the audio. The CDG disks are not usable. I have backed up my intire collection to the HD's and would like to move them all to 1 HD. Can any one help? I have tried this senario on diverant combinations of drives and come up with the same problem.