CD-Cops is meant to be hard for Clone CD to copy - you might think Why don't they use this more often? They don't use it more often cos the originals had trouble playing in a lot of CD-drives. Some say the new Starforce is basically CD-Cops "fixed".
Have you tried looking for a crack from:
www.gamcopyworld.com
www.megagames.com
http://gamefix.dxs.to/