There's this problem I've always been encountering, everytime I put a video on my SD card, and try to play it on my device, the pop-up box that says "Sorry, this video..." shows up. The video's i put are in .mp4 format. There's this instance that I had someone bluetooth me a video, and it worked. But after I edited the video (added bleeps to censored words), and put it back to my phone, the pop-up box came again. HELP