For some reason I immediate turn to ISO9660 format when the user want "Mac compatible." Let me share a link about CD Recording with all the other answers.
(I'm sorry if this has already been answered elsewhere, but I did a search and couldn't find anything.)
If I create a CD in Windows, can it be read on a MAC? I know about the obvious issues, like the format of the file, but what about folder structures and the general CD format?