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From: D Yuniskis on 20 May 2010 13:03
Hi Grant,

Grant Edwards wrote:
> On 2010-05-20, D Yuniskis <not.going.to.be(a)seen.com> wrote:
>> George Neuner wrote:
>
>>> First, music CDs (stamped or burned) have no error correction. Data
>> Huh? I thought CD's had a CRC and that the CRC was physically
>> distributed around the track to take advantage of the fact
>> that "scratches" are "local". <frown> Though this is just
>> a remnant of a memory from years ago -- maybe it pertained
>> to MO drives?
>
> CRC is error detection, not error correction.

Yes, I understand that. In the context of my original question,
all you *need* is a CRC to tell you if your read *was* correct.
(that was my stated goal).

ECC just makes it easier to *get* a "good read" in the presence
of (some number of) errors.
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