jase wrote:C1/2 errors are supposed to be an absolute measure.
I have to respectfully disagree with that statement. The errors are a function of the disc, the drive in which it was written, the speed at which it was written, the drive in which it is being read, the speed at which it is being read and a host of other tertiary variables. You'll never get the exact same C1/C2 error measurements twice. That isn't to downplay their worth, but just to point out that they aren't fundamental absolutes.
jase wrote:FWIW I've been writing audio discs on crap media at 48x with no problems.
Depending on how "golden" (or, in my case, leaden) your ears are, an audio disc can have a large amount of errors and still sound acceptable due to the error masking that CD players perform.