> As for the C2 errors, as you personally know, spath, there is
> more uncertainty and disagreement in general as to what constitutes
> a "C2 error" and whether or not "C2 errors" include uncorrectable
> errors as well.
Well, I have no doubt about the official meaning of "C2 error" (any
error, correctable or not, detected by the CIRC's C2 stage), I only
have doubts about what CDDoctor means by C2 error
> If I get a chance, I will write Miyuri and see if he knows.
> There is a chance that even he does not know, since he might
> just be reporting information delivered by the chipsets of
> the supported drives, and the documentation for those chipsets
> may not be as detailed as we would like.
If you can ask Miyuri please do so, that would be great. By the way
you could also suggest him to add the uncorrectable C2 errors to his
plots, because it's a very important figure which is currently missing.
Another practical method to get some infos about the plots could be
to use an artificially degraded disc (say some tape on a cd) and test
it with CDDoctor to find out the maximum C1 and C2 values it can report.
Since correctable errors are measured in bytes and uncorrectable errors
are measured in frames, the maximum values will be different between