5 Best MKV Codecs for Windows Media Playerīelow are five MKV codecs from different codec manufacturers. If you are still confused by such codec and format stuff, try VideoProc Converter which will guide you to process MKV files with ease. Now you can select the best MKV codec by consulting the list of media types supported by Windows Media Player. MKV is a container where many video, audio, and subtitle streams are stored in a single file, and they can be compressed under different standards.MKV codec is a piece of software capable of decoding and encoding the video and audio data from MKV files.

In the first place, we should clarify exactly 'What an MKV codec is', to avoid any misunderstandings:

Can't Play MKV File with Windows Media Player Therefore, we rounded up the best free MKV codecs to help you play MKV files in Windows 7/10/11 without error. Even though MKV has been natively supported since Windows 10, many people still can't play MKV files with Windows Media Player, because the media player is unable to decode all types of codecs used in MKV files.