Reviews by tsjnachos
These codecs play just about everything under the sun. If you can play it with, eg, MPlayer, VLC, or any other FFMpeg-based player, you can use this to play it with Windows Media Player, or any other DirectShow player.
Seriously, even BD decoding technology is included, although I haven't tested this. If you have a stubborn video that should play, but won't, this is the solution.