sd card

I have a canon rebel t5 and use a sandisk ultra 80mb/s 32gb SD card and it has thelittle circle around the number 10 (I know my SD card is fast enough, it has worked for the longest time) and just yesterday, when I try to record any footage, within the first few seconds it tells me the vide has...

Just was filming with my Drone, got back, and half the footage is missing on my SD Card. This keeps happening all the time!! It is a genuine SanDisk card (16GB), and about 2GB worth of videos just vanished! None of my clips are corrupt, just some of them vanish. I tried a data recovery program...