So I one of the coordinators for Take Back the Night here at USC, and someone forgot to bring in their laptop for our video projector. The laptop that someone else had handy didn't have any video program and Media player wasn't opening or recognizing the DVD in the drive. So I tried using VLC portable from my usb key, and viola! It worked, the movie played, the night was saved! Of course, there was about 10 minutes of worrying on everyone's part because I didn't remember that I had VLC on my usb key.