Certain photos/videos won't work on my galaxy s7

[Nicolarose_x]

Hiya, the last few days a few of my videos won't play. A message saying 'Failed to play video an unknown error occured' ive searched this forum for answers and all the advice given, I have tried but nothing has worked. I havent changed anything on my phone, no new updates and its only on a few videos so im stumped about what the cause is. Please help

 

[B. Diddy]

Welcome to Android Central! Were these videos taken by the phone's camera, or were they downloaded from somewhere? Does it only happen with locally saved videos, or also with streaming videos? If they're locally saved, are they on Internal Storage or the SD card?

 

[Nicolarose_x]

Yes they were taken with the phones camera. I've took 3 videos this week. The first one shows the thumbnail of the video but shows the error message when I play it. The next video works fine and the last one is just a grey screen. There all saved to the sd card

 

[B. Diddy]

It's probably an issue with the SD card. SD cards are inherently less reliable than onboard memory, and even cards from well-respected manufacturers are prone to failure.

Go to Settings>Storage, Unmount the card, remove it, and insert it into your computer. Can the computer read these files? Backup as much as you can right now, then run chkdsk to look for bad sectors: http://forums.androidcentral.com/am...guide-using-chkdsk-fix-corrupted-sd-card.html. If it finds bad sectors, and the photos/videos aren't crucial to save, then go ahead and allow chkdsk to try repairing those sectors. If they are really precious, then you'll have to try recovering them using 3rd party software: http://forums.androidcentral.com/am...os/500142-guide-recovering-deleted-files.html