Ok so everytime I move files over from my internal storage to my sd card on my galaxy s5 they become corruped. This is my 3rd memory card I have purchased so it's not that. I am even using an official samsung 64gb micro sd card. When the video clips are saved on the device they play fine. So I copied them over to my sd card using the my files folder on the phone and "moved" them and "copied" them over. At first the files play fine but then when I go back later to play them some of them pop up as unable to play video and are corrupted. I googled the issue and I'm not the only one having this problem but I haven't found a resolution either. Anyone experience this issue or have a fix?