ok this is my first post on the forums. I've had my surface for about a month now and love it. I use this primarily for school but now I would like to play movies for my kids when I bring them to work. I'd rather not carry their dvds so I tried putting their movies on a micro sd. the only problem is when I play the movies from a thumb drive it plays fine but when I save it to the micro sd card my surface claims that the files are unsupported. I use a 32gb Kingston and have heard that some cards are not capable of playing videos. Is this true?