Date:         Tue, 1 Aug 2006 14:43:09 -0700
Reply-To:     Association for Recorded Sound Discussion List
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Sender:       Association for Recorded Sound Discussion List
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From:         Mike Richter <[log in to unmask]>
Subject:      Re: 5" discs more hearty than some think
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David Breneman wrote:

> It's the light.  A recordable CD is a photograph of
> what a pressed CD would look like.  Since the
> photographic image is not fixed, it's subject to
> continued exposure.  The emulsion responds to a
> very narrow band of light, and it needs to be
> pretty intense over a prolonged period, but sunlight,
> being very broad band, will damage it.

Surely, an intriguing conjecture. Do you perceive any relationship to 
such established facts as the metastability of the dyes and their 
time/temperature breakdown?

Mike
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