Quote:
Originally posted by DrDoogie
Um, C2 can be corrected?
Can anyone point me to the section of ECMA 130 that states this?
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ECMA-130 is not Red Book. It doesn't states this. However, what is written in section C4 page 33 implies it : "The error correction encoder C2 genrates..."
Quote:
Originally posted by DrDoogie
If not, considering that the "CI" in CIRC stands for "Cross-Interleaved", don't you need a LOT of erroneous adjacent blocks in order to get a C2 error?
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Since yes, let's consider the number of erroneous adjacent blocks needed in order to get an uncorrectable C2 error.
It depends on the chipset of the drive used. It varies from 8 to 17 adjacent blocks.
Quote:
Originally posted by DrDoogie
In short, does the scratched CD really have a chance of being read correctly simply by re-reading, given that there are lotsa errors to begin with?
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It depends on the amount of damage that the data has suffered. We saw that more than 2/3 of the errors on a lighly damaged CDs are not consistent.