Sorry for any inconvenience. But we definitely need to exactly know what is the video codec inside those video containers. The format might be supported but the codec probably may not, that is why it cannot play and the same goes for your camera video.
Can you use the software "mediainfo" to show the real media details. You can download the software from the link below and after installing run the application and select "tree" as your viewing preference. You can drag and drop the media file there and copy the shown information and send it to us or post it here. http://mediainfo.sourceforge.net/en/Download