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Some of the other usual "computer" echos seem empty/dead, so I thought I'd
post my question here - and it relates to a 9-year old matter, so it kinda
fits in this echo.  :)

Has anyone experienced lost of diminished retention of data on an old micro sd
card?

In my case, the card is about 9 or 10 years old.  4 gb.  I used it to offload
copies of files that I didn't quite need to access too frequently anymore, but
the storage to the microSD was convenient.

Now, 9-10 years later, some of the files do not seem to be accessible. Windows
struggles to read certain files - and would often fail.

The card itself did *not* entertain frequent reads or writes. The last files
that were stored on the card are dated 2012.

Many of the files were small, under 100kb each (html code samples, small
photos for website work, some pdf files, copies of bills, etc.)  There were
about 20 subdirectories, and a couple of the directories contained over 3000
files each.

I have been able to copy (save) about half the content.  I can't delete *some*
directories or files from the device anymore.

Is 10 years a normal lifespan of microSD cards?  It is possible that unusually
high temperature may have played a part in the matter (specifically, direct
sunlight hitting the card over time)

Anyone with similar experience?

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