From Freedom Software Company:
Free MKV Player is a wonderful video player to watch all of your favorite videos, tv shows, move clips, and everything else in-between. Not only does Free MKV Player play mkv files, it is also capable of playing the very popular avi and mp4 video formats. Matroska Multimedia Container or MKV for short is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. This file format is very popular amongst the digital media and video industry. It offers very high quality resolution and a compressed file size.
Free MKV Player is a very simple or classic media player. Users can drag and drop video files into the player for instant playback. Full screen mode is also available to enjoy the biggest picture available. No codecs are necessary to download for Free MKV Player to work. By simply running the setup, users are quickly able to watch videos within minutes.