Hi. I was watching a TV show avi file on my stock GPad stored on a 128GB class 10 Sandisk, when suddenly it stopped working and said something like "Cannot play this video" which was strange as it had played the previous episodes and half of that episode fine. I was using MX Player so thought I'd try the stock video player and it couldn't load the files either. I tried some other files both avi and mkv and no luck either. Then I loaded the video files onto the internal memory and they play fine so its not a problem with the files or the media players. Also all my music and photos that are stored on the SD card play back fine. So why did video files stop working? Anybody else have this issue?