Matroska Multimedia Container, or more popularly known in the file extension of .mkv (for video with or without subtitles and audio), .mka (audio-only) or .mks (subtitles only), is an open standard free container format. Matroska itself is not an encoding format for multimedia files, but serve as a universal format for storing and hold unlimited amount of common multimedia content of video, audio, picture or … Continue reading How to Open and Play .MKV, .MKA or .MKS (Mastroska) File in Windows Media Player (Filter Codec Download)