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Re: [ARSCLIST] CD longevity (was Re: [ARSCLIST] Reel-to-reel tapes: storage conditions and potential content retrieval)
> 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.
>
> Mike
> --
> mrichter@xxxxxxx
> http://www.mrichter.com/
Very true. Both discs and disks are vulnerable to mishandling. One
significant difference is that 78s are degraded by wear when played while CD
and DVD discs are not.
Jerry
Media Sciences, Inc.