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Posted by Bill Vermillion on 01/02/06 23:35
In article <rr7jr1d06e9j2ks905102neuoghgm2jvv5@4ax.com>,
Roy L. Fuchs <roylfuchs@urfargingicehole.org> wrote:
>On Mon, 02 Jan 2006 17:45:01 GMT, bv@wjv.com (Bill Vermillion) Gave
>us:
>>Actually the pits won't be the same length as they are just
>>representations of a clipped FM signal. So the pit length will
>>vary directly with the frequency at that instant. But the tracks
>>will be the same length.
> The pits for the same data would be the same length, regardless of
>where they appear on the disc. Satisfied?
Nope. Look at the way the FM signals are encoded. It's a varying
frequency. Then you clip it to give you a lot of little
square-wave-looking pieces and encoded those on the disk - and they
vary in direct proportion to the original signal.
It basically RF encoding to an analog medium.
Bill
--
Bill Vermillion - bv @ wjv . com
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