Hey there,
In my opinion almost all the copy-software of Adaptec sux! I made a working 1:1 backup of Diablo 2. I used CloneCD 2.7.x.x forgot which version I have

... Anyway I used the next read settings: Read Subchannels from Data Tracks and Read Subchannels from Audio Tracks.
In the write tab select Don't Repair Subchannels...
And then copy the game!
This should work...
My Hardware:
cd-reader: A-Open
cd-writer: HP9310i Plus