Step 4: Cutting the CDs
You can cut them anyway that you think will work, just remember that friction from any sort of saw will create heat. I had to pry mine apart, but it was no big deal. I'm not sure how that would go with a power saw. (if you try, please share your results in the comments)
I put the stack in a bench vice and used a hand saw. Holding it together with clamps as well as using the vice will help prevent cracking.
When cutting on the curved surface, starting with a small hacksaw is much easier than starting with a large saw.
I started with a miter saw, but eventually switched too a hacksaw. The hacksaw had a slightly thinner blade than the miter saw and got stuck less often. It also never cracked a CD.