Media Player Classic - BE is a free and open source audio and video player for Windows.
Media Player Classic - BE is based on the original "Media Player Classic" project (Gabest) and "Media Player Classic Home Cinema" project (Casimir666), contains additional features and bug fixes.
This player has a lot of potential since it is MPC HC knock off so it is small, fast and portable with some aditional very useful features like seek preview bar but in latest version it still has problem with rendering some MKV and HD WMV files. If devs would fix those problems i would consider it as my default media player.
a few more options and features missing.