Richard, maybe I read too fast, and missed the phrase "full-resolution audio". But if one wants to know whether there is a CD that will hold 90 minutes of audio, isn't that the determining factor of the question? And noone said anything about providing clients with "full-resoution audio," that I could remember. Anyway, the question, as well as the answer, is moot. One CAN put a lot more than 90 minutes of sound on a CD, but whether it will satisfy other criteria is another matter. And are you saying that a 534 minute CD will not survive as long as an 80 minute CD, all other things being equal?