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Posted by Roy L. Fuchs on 01/03/06 03:18
On Mon, 02 Jan 2006 23:35:01 GMT, bv@wjv.com (Bill Vermillion) Gave
us:
>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
You obviously didn't get what I said. I said the same info (hence
same FM signal) being recorded in two different locations on the disc
itself. Since a CLV disc slows down as it progresses to the outside
of the disc, the same info appearing in two different places should
have the same pit sizes and shapes since the track passes under the
head at the same rate.
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