Re: arsclist media preservation and access project

[Don Cox <doncox@xxxxxxxxxxxxxx>]

On 19-Nov-02, Jerome Hartke wrote:
> This may be rather minor, but Red Book, or IEC 908, applies only to
> digitized audio recorded as a continuous stream. It does not define a
> WAV file structure.
> 
> Yellow Book, or ISO/IEC 10149, and ISO 9660 provide for recording
> files to a CD. They do not define a WAV file structure.
> 
> Someone else on the list may know the origin of WAV. It is a popular
> method of saving audio in a file structure, but I do not believe that
> a disc with WAV files would play in a Red Book audio player.

The point of having a disk with a WAV file on it is that it can be read
with bit-for-bit accuracy, and an audio CD can always be derived from it.

This is not true of a Red Book disk, which is a streaming medium and
does not claim to return the exact bits that you recorded.

So you have one copy to listen to and one in reserve as an archive (for
as long as it lasts).

If the WAV disk does fail, the computer may refuse to read the file at
all. So in that case, the audio disk could be a useful second best.

The actual digital content of a CDDA file and an uncompressed WAV file 
are the same - the WAV has a header added. An AIFF is also the same.

Regards
-- 
Don Cox
doncox@xxxxxxxxxxxxxx

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