The K-Lite Codec Pack is a collection of audio and video codecs for Microsoft Windows that enables an operating system and its software to play various audio and video formats generally not supported by the operating system itself. The K-Lite Codec Pack also includes several related tools, including Media Player Classic Home Cinema (MPC-HC), Media Info Lite, and Codec Tweak Tool. K-Lite Mega Codec is editions of the K-Lite Codec Pack which The Mega edition includes all features of the Full edition plus ACM and VFW codecs for video encoding/editing, AC3Filter, Haali Matroska Muxer, FourCC Changer, and VobSubStrip.