Litescribe
Litescribe is a system where you use the laser that writes your DVD or CD to also print a label for it – diurect into the media itself. Your drive has to be "lightscribe capable" of course for this to be viable, and you also have to be using specially coated disks – understandable, but rather limiting.
Read more at the Lightscribe Site[Thanks to Talios for the head's up]