K-Lite Codec Pack is a collection of codecs and related tools. Codec is short for Compressor-Decompressor. Codecs are needed for encoding and decoding (playing) audio and video. It is designed as a user-friendly soluction for playing all your video files. You should be able to play all the popular movie types and even some rare types. K-Lite Mega Codec Pack combines the contents of three codec packs: K-Lite Codec Pack Full, QuickTime Alternative, and Real Alternative. It also includes some extra capabilities: BSplayer and DC-DSP filter. This Pack, constructd my the makers of K-Lite Codec Pack, includes codecs for the most popular compressions like Divx and Xvid as well as some of the less popular but still necesary codecs. This is your one stop codec resource. Latest changes include: - Updated BSplayer to variant 1.39.829 (no adware!) - Updated x264 to rev. 439 - Fixed FLAC playback - Updated FLAC to variant 0.70.0827 - Readded MainConcept MPEG audio decoder [variant 1.0.0.78] - Readded MainConcept MPEG video decoder [variant 1.0.0.78] - Readded MainConcept MPEG demuxer [variant 1.0.1.20] - Minor changes