That's the beauty of it, you can take aaaannnyyy video you want, most won't require too much of a convertion and use it as a boot screen. I don't know anything about the application, I just use WinSCP from my PC to change boot videos. I managed to get a 1080p copy of The Matrix, and cut out the part where Morpheus picks up Neo and says "Welcome... To The Real World..." and then it actually faded to black in the movie itself lol, so it was perfect for my boot