BitComet is best known for its torrent-downloading program, but this FLV player is not a bad entry into that field, either. It's not going to blow your socks off, though, and because its layout is too sparse to easily manage, you might want to look elsewhere unless you're a die-hard BitComet fan.
The program loads to a black screen with a simple Play button in the lower left corner, and a counter and volume control in the lower right. On the menubar, File gives you access to a URL loader for directly playing FLVs from the Web, View lets you double or triple the size of the window, and Options controls file associations and languages packs. A fourth category, More FLV, provides FLV-managing instructions posted on the BitComet forums.
Although most FLV players tend to err on the side of fewer rather than more features, the BitComet player is too light in this regard. Without even the ability to loop the video, we'd like to see more features added before using it again.