EAC C2 error correction, Use it or not? Options

[RiskyP]

My drive supports C2 error correction and I have been using it always since it gives the fastest rips for me, while still no errors are reported and all track qualities are above 99.5%. Using this option, I get rip speeds of 18x and I was wondering whether C2 error correction is really that reliable? I mean, I never get error messages, the track quality is always reported to be over 99.5% and I cannot hear any audible difference. Is there any incentive NOT to rip at 18x under these conditions?! Btw, my drive is a LiteOn 48x CDRW (I can't remember the model name off the top of my head)

[Pio2001]

I meant that if you turn C2 on, then test and copy a CD, and get the same CRC, it doesn't prove anything. It is even likely to happen if your drive have no C2 support at all ! It is common to get a correct extraction with a good CD, thus CRC OK.
So you can't say that if you get CRC OK on a C2 rip, your drive have perfect C2 support.

On the other hand, if you manage to get a "copy OK" with a lot of error correction, there will probably be 10,000 C2 detected errors, for example. Then if you get CRC OK, it means that all of the 10,000 errors were detected, thus that your drive have 99.99 % C2 accuracy.

Atici, Tigre's recent tests proves that the no C2 setting doesn't give perfect results either.
Of course you get CRC mismatches only when C2 is on, because a "no C2 mode" failure means a consistent error, that is twice the same wrong CRC !
thus the CRC method can't be used to test the secure mode accuracy, since CRC comparison is the same as readig twice. Either they both succeed, either they both fail.