The CD tracks are played digitally , as opposed to analog , like other programs. In short, these tracks are treated just like a file. Your CD-ROM drive needs to be able to extract digital audio accurately for this feature to work properly. This is fine for ripping where speed isn't as important, but for real-time playing, it is not practical.
Panasonic drives are very good.
So are some other brands. If you are buying a new drive, stick with the name brands. If your drive does not work well with this new feature, ie. The other important issue regarding CD-ROM drives is the spindle speed. 2x, 4x, 12x, whatever, of the normal audio CD spec.