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Re: [ARSCLIST] CD longevity (was Re: [ARSCLIST] Reel-to-reel tapes: storage conditions and potential content retrieval)
On 02/03/08, Mike Richter wrote:
> Don Cox wrote:
>
>> Manufactured CDs (with physical pits) should last as long as 78s.
>
> That is far from clear. The pits and lands themselves may survive, but
> they are read by reflection from the vulnerable metallized layer.
>
That layer doesn't seem to be very vulnerable, except in the few
well-known cases of faulty manufacture.
Some time, somebody will devise a solvent to remove the metal so that a
faulty disc can be replated.
Regards
--
Don Cox
doncox@xxxxxxxxxxxxxx