Sorry if this is a stupid question... I am a grad student and one of my textbooks came with one of those mini CD-ROM disks that are about 3" in diameter. Since they're so much smaller than a normal CD, I'm apprehensive about sliding it into the disk drive on my new Macbook for fear that it may get stuck or it won't be recognized. Does anyone know if these tiny disks work with the type of drive a Macbook has? I really don't want it to get stuck. Thanks!