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Posted by Roy L. Fuchs on 12/30/05 21:17
On Fri, 30 Dec 2005 20:44:44 GMT, spam@uce.gov (Bob) Gave us:
>On Fri, 30 Dec 2005 18:48:58 GMT, Roy L. Fuchs
><roylfuchs@urfargingicehole.org> wrote:
>
>>>There is no "top coat" other than the lacquer finish.
>
>> My point exactly. The layer on top of the polymer layer is very
>>VERY thin. Case closed.
>
>Not so with the disc I have.
>
>It has a top coat of lacquer, then the plastic disc itself then the
>active coating on the bottom - the underside.
>
>Any contaminant on the top would have to travel thru the full
>thickness of plastic to reach the bottom where the active layer is
>located.
Dude, the write layer is NOT exposed to the touch... ever. It is
under a layer of polycarbonate plastic. The laser writes through the
poly plate and impinges on the polymer layer INSIDE the disc. That IS
the Tandy design.
You HAVE to be trolling at this point. There RAE NO writable optical
discs where the polymer write layer is directly exposed as the bottom
surface. It is ALWAYS under a plate of clear polycarbonate (some have
color, but that is all show).
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