When entering a direct URL to my M4V videos they do not play back. I get the stream not found error. But when I upload the file directly through your component it works fine.
The direct URL's I enter work fine and open up a player or download for the video. So it is a live and working url and in proper M4V format.
I uploaded my videos via FTP since my hosting limits to 64MB site uploads and some videos are 500MB so I need to do direct URL for most videos.