Subj : trouble with old micr sd cards, anyone?
To   : August Abolins
From : Dave Drum
Date : Thu Sep 12 2019 10:49:08

-=> August Abolins wrote to All <=-

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

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

     8<----- EDIT ----->B
  
 AA> I have been able to copy (save) about half the content.  I can't
 AA> delete *some* directories or files from the device anymore.

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

 AA> Anyone with similar experience?

I've no direct experience with degradation of SD cards - micro or std.

But, I've had lost data/corrupted data on nearly everything else. Heat,
bright light and cosmic rays seem to play some role. I've even had CDs
and DVDs get trashy parts on me.

Having been bitten more than once I've adopted a practice of copying
"important" files onto a separate device/medium then use a file comparison
utility to check the result.

IOW - trust your media - but always "cut the cards" by checking. It's
when yo're not looking that the data goes "walk-about".

.... Amiga made it possible. Commodore made it dead.

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