The Matroska Media container is a very popular, open standard multimedia container which is usually found as .MKV files. It is a very popular format in enthusiast circles and can be played directly in VLC or Windows Media Player with suitable codecs installed.
We played our 1080P MKV rip of The Dark Knight using the latest version of VLC Media Player.
HD playback is a strength for the Maximus VI Hero. Asus' gamer-orientated ROG board is able to offer CPU-efficient playback which is likely related to its low CPU overhead for stability software and onboard controllers.