Originally Posted by Marc Peters

Essentially you need two instances of a video application to open up simultaneously, and then to expand to full screen. Although you can open up multiple instances of the current versions of Media Player, Media Player 6.4 can be opened up in multiple sessions. So that's the first hurdle, download media player 6.4.

The second is opening them up simultaneously. You should be able to do this by automating a command line script in a bat file.

This command will open up a new instance of the player, and then play the file in full screen automatically:

Mplayer2.exe /play /fullscreen c:\pathtovideo\video.avi

So that's the second issue covered. Create a bat file with that command.

The final is opening up two instances at the same time on different screens. The problem with the method above is that it will simply open up on the same screen! So you can't automate it using my method, but you can drag it to another screen (the videos will be in synch).

A more fundamental problem is that yoiu need to ensure that you can play a video overlay on both screens at once. Which leads me to my final point - why not just set up the monitors as mirrors? That way, whatever is one one screen is displayed on the other? Or is this two different video files?