Copy Mac cd on PC
With diskcopy, they work without any problem.
With CD-Everywhere, it is even possible to compile Mac-images on a PC and with your preferred burningsoftware (e.g. Nero, Goldenhawk...), you then burn the image and you have a fully Mac-compatible disk.
Even more, when you use a program like MacDrive, you can even read (your) Mac-cd's on your PC