Re: iTunes won't import CD's
For an experiment: don't run iTunes. Just put the CD in and see if Finder finds it and keeps showing the contents. I think it should (at least, a Windows PC does); to be sure about how OS X should behave, better ask on one of our Mac forums.
The strange thing is that it happens on three Macs. That practically rules out a hardware issue or a bad setting. So maybe it's a good idea to head to the Mac forums with your issue right now. Much more visitors, better help.