I have some videos on my SD card. When I try to play them from the Gallery using "Video Player" I get an error message saying "Sorry this video can't be played". When I access the video directly from the "Video Player" app it plays fine. My "assumption" is that the Gallery can not play videos from the SD card so is there a way to move them from the SD card to the main memory of the phone without being rooted? Or are there other solutions?