Posted by Richard Crowley on 04/30/07 14:17

"Scott Dorsey" wrote ...
> Richard Crowley wrote:
>>"Telstar" wrote ...
>>> "Richard Crowley" wrote ...
>>>> Indeed. In fact, the "cd native format" is effectively WAV.
>>>> The audio data is exactly the same. The only difference
>>>> is that the CD "files" don't have headers (since they don't
>>>> need them, as the format: 16 bits x 44.1K samples is
>>>> pre-defined.)
>>>
>>> .WAV files are quite different: There are no error correction
>>> elements.
>>
>>You appear to be confusing the medium with the message.
>>WAV files (and, indeed ANY computer files) have even more
>>error detection/correction than the information on a RedBook
>>audio CD.
>
> Well, it's not the .wav file itself that has all that error
> correction,
> it's the Orange Book CD-ROM format, or the DVD format, which has all
> the
> error correction going on.
>
>>You can demonstrate this for youself by trying to write the
>>equivalent WAV file as an Orange-Book data CD. Note that
>>exactly the same data takes more space on an Orange Book
>>data disc.
>
> Yes, but the error correction isn't at the .wav layer, it's at the
> orange book layer. Admittedly the end results are the same.

Right. The point was that neither the raw data on a Red Book or
an Orange Book (or on a computer hard-drive) have intrinsic ECC.
The error detection/correction is handled by the media. Red Book
ECC is less robust (and correspondingly takes less space) than
the ECC on a computer-data medium like Orange Book discs
or hard drives (or backup tapes, etc.)

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