I've been getting read errors lately with my current SD card, so I think it's time to replace it... I don't trust it. What's the good card these days?
Here is what I'm using now... I'd assume it would still be good, but I haven't had to get a new card in a year or so.
Amazon.com
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There are Memory Cards being sold on the Internet with very little warranty cheaply.
The best is to purchase in a Shop and keep the box as well as the receipt.
Most Manufacturers give a 10-year warranty. Search their website, please.
I like to buy SanDisk and Extreme PRO is my favourite.
SanDisk gives a lifetime warranty.
I only had one SanDisk warranty claim many years ago. The Sales Rep was very kind and with a smile, he put me at ease and took my contact details. And I think it was my fault for removing the USB memory stick from the PC incorrectly or formatting it. A few days later I received a call to come and pick up my new USB memory stick with lots of apologies.
I suggest formatting it always on the device.
About a year ago I experienced problems with my SanDisk Extreme PRO of my Drone in 4K The Video wasn’t smooth, breaking up and the pixels were smudged on the screen.
My first impression was a bad SD Card. I took the card back to the Shop, they inserted the Card on their PC and found, nothing wrong. I decided to take my PC to a Computer Shop together with my SD Card and found that my, Display Card on my PC could not handle 4K files.
I replaced the Display Card and the Monitor to solve the problem.