The typical failure mode for aluminum CDs is corrosion from water vapor
and/or air getting through or around (at the edges) the thin lacquer
coating over the aluminum. The aluminum oxidizes and take the bits with
it. DVDs are better built (thick plastic layer, not lacquer) to
withstand that but are still susceptible.
Chuck Norcutt
On 4/15/2013 7:40 AM, Andrew Fildes wrote:
> I knew someone who tested various brands of CD for longevity - by
> loading some images and then hanging them on a clothes line out in
> the weather.The worst barely lasted a month - Kodak Gold were still
> coughing up the images after a year. Stored in a dark place, stable
> atmosphere, separated and little used, decent quality discs should be
> good for long than I will be. Andrew Fildes afildes@xxxxxxxxxxxxx
> www.soultheft.com Author/Publisher: The SLR Compendium -
> http://www.blurb.com/books/3732813
>
>
>
> On 15/04/2013, at 9:00 PM, Bob Whitmire wrote:
>
>> Just for the record, I've got some early backups from 2001, when I
>> first started shooting again, copied to Staples brand CDs. Recently
>> I had occasion to search one out and damned if it didn't load up
>> just as pretty as you please. Surprised me, it did.
>
--
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