Micro SD card woes

Aug 26, 2020 4 Replies

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etpm 5 years ago

I have an old Canon camera, model SD300, that I modified for taking pictures in near IR and near UV. The largest capacity SD card it will take is a 2GB. I bought 2 cards and took a lot of pictures and they were all fine when I looked at them later when I put the SD cards in my computer and tablet. The cards have sat around for about a year and now most of the pictures are corrupted. Fortunately I had saved the pictures I liked. Is there something I could have done that caused this problem? I am using micro SD cards in an adapter so they will fit the camera and my tablets. Should I just use full size cards and only view the pictures on my computer? Thanks, Eric

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peterwieck33 5 years ago

Older SD cards suffered from deterioration, temperature sensitivity, moisture sensitivity, power spikes, power failure, and "simple" internal failure. Solutions include:

SD Monitoring software - It will check an SD, warn if there may be damage and can (sometimes) fix that damage. There are companies out there that will do the same thing if you send them the damaged card.

formatting link

One of several.

Shift to 'industrial' SD cards.

formatting link

One of many options.

Peter Wieck Melrose Park, PA

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KenW 5 years ago

I think who made the SD cards makes a big difference just like flash drives.

KenW

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Mike Coon 5 years ago

You nay be able, if wished, to read full-size cards in a tablet by using an OTG card reader quite cheaply.

Mike.

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whit3rd 5 years ago

Age causes the charge to leak, and any 2G card is probably a decade old. Good news: you can get a format utility from the SDcard consortium

and if you choose the 'overwrite' option, it completely initializes all the bits instead of just directory twiddling.

The complete rewrite takes a while, of course, but it does get rid of weak bits, and presumably that's what aging has done.

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