Question MP4 files corrupting after copying to USB Drive.

[Iadiesman217]

I've been downloading movies for a while now, this problem has been recently surfacing right now. Whenever I copy my files to my USB, it plays. But whenever I plug my USB again, it just won't let me play and gives me a 0xc00d36c4 error message. I'm using EXFat on my USB, if that's any help.

 

[rgd1101]

so when did it plays? right after you copied?
what the usb drive?