View the content of the DAV video files that you have stored on the PC. The tool will work with files coming from an external drive, but only if your copy them to your hard-disk first. It includes the ability to play as many as 36 videos at the same time in a single interface.
Smart Play is a free to use video player similar to Windows Media Player or Quicktime that allows you to play .DAV video files. Make sure to copy the .DAV files over to your computer off of your external drive. It will not play directly from your external drive.