Subj : trouble with old micr sd cards, anyone?
To   : Tony Langdon
From : August Abolins
Date : Mon Sep 23 2019 18:07:48

On 22/09/2019 9:08 p.m., Tony Langdon : August Abolins wrote:

>   AA> Have you tried the same DVDs on a newer machine?  An older machine
>   AA> could start developing problems tracking, among other things too.
>
> Yes - multiple machines, same result, whether a Blu-ray or a newish
> computer DVD drive.
Did the disc ever get exposed to extreme changes in the temperature and 
moisture?  Apparently the edges of those discs expose the recorded layer. 
Humidity would be a killer.

Also..  https://en.wikipedia.org/wiki/Disc_rot  ..is interesting.

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