Actually, that's not quite true -- I don't know if they're still doing it, but there used to be a number of consumer products that would only use "Music CDs". These CD-Rs designated for "Music" were a half-brained attempt (like SCMS was) at stopping digital copying. They force the recorders to only accept these "Music CDs" which basically had the copybit preburned to ON, and they would charge a premium price (by misleading the consumer into thinking that CDs marked "For Music" were somehow better than standard CD-Rs...) It was a pretty silly concept for the most part....