Another difference between the two thermal print technologies is that the disc used in retransfer printing must have a top coating designed for thermal retransfer. Because the color image is applied to the retransfer ribbon and then the disc, the ink gets fused into the optimized disc surface, and it is there to stay. Thermal retransfer print is not a laminate-remember, your credit card doesn't have a layer that someday peels off. Thermal retransfer print is permanent. (The only difference between a credit card and a printed disc is that credit cards are printed on two sides, of course, and optical discs are only printed on the top surface.) The ultimate result is a photo-realistic, color label that is clear, smooth and highly durable.