I just got my phantom 2 vision + and went out and shot some video. When I got home I connected the USB cable to my iMac, turned on my camera and drug the video file to my desktop. It showed up as an .MP4 file. When I double clicked the .MP4 file it would not open. I tried it in Quicktime 7 and it said the file type was not supported. I got a similar message from iMovie. What can I do to open this video file and do some basic editing??