It's looking like my question was answered in two different ways. Many of the clips now available can't be stored on a CD. I always store mine off of the computer, and now use DVDs or an external hard drive out of pure necessity. There are just too much kb, mb, and clip lengths to use the CDs effectively anymore.
I know very little about the technological aspects involved, but the information above provides some great insight into them. Knowledge is never a bad thing to gain.
Thanks everyone.