I purchased a 32 GB Scandisc SD card for my Samsung Galaxy Tab and I put a bunch of video files on it. However, when I watch a video on the SC card, it often stops after a while and when I try to start it again from My Files, it says "video can't be played". Also, in My Files some of the files on the SD card stop appearing and I need to take out the SD card and put it back in. This does the trick... until the next time it stops. I replaced the first SD card with a another one, thinking it was faulty, but the problem persists. I can't watch a full video without having to take out and put back in the card several times. Any suggestions? Thanks.