this post was submitted on 14 Nov 2023
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Photography

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Do SD cards go bad? (alien.top)
submitted 2 years ago by project_seven@alien.top to c/photography@viewfinder.pro
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So I take hundreds of photos a day, 5 days a week for work and have never had this happen to me before. I was copying my work onto my computer after working all day and 3/4 of the way, my sd card got corrupted and lost the ability to view/download my photos. On my computer and even on the camera. It's like the information was there, but my camera said "Can't play back" or something when trying to view, and my computer just showed it empty.

Luckily it was my biggest client, so it was not an issue to go back to reshoot my shots needed. But I'm very worried it will happen again. I have a big shoot today, with a potential big new client, and can't have this happen again. Do I need a new sd card? I only have another micro sd with the adapter, so I'm just debating going to get a new one right before my shoot.

Has this happened to anyone before? And how do I prevent this in the future?

Thank You

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[–] sentry07@alien.top 1 points 2 years ago

It's how flash storage works. Bad blocks get marked and then the storage controller ignores those blocks when storing data. If you looked at the size of the drive before and after, you would notice the size has decreased. The first part of the drive is the most used and flash memory bits die after a lot of write cycles. Usually in the hundreds of thousands to millions of cycles, but not always. Depends on the quality of the flash memory, temperature, how they're treated, solar flares, witchcraft, etc.