Free & Open source Lightweight Flash Video Player – f4Player

f4Player is a free and open source Flash video player that can play .fly, .f4v or .mp4 files in websites or within AS3 projects.

It is lightweight (8kb) and has a skinnable interface (few skins are included with the download).

The player supports progressive downloads (ability to play the downloaded portion of a file while the download is still in progress) and fullscreen display.

Website: http://f4player.org/
Demo: http://f4player.org/en/project/demos
Download: http://code.google.com/p/f4player/downloads/list