Here are some of K-Lite Mega Codec Pack major features: This Codec Pack provides a user-friendly solution for encoding and decoding (playing) all the popular audio and video formats and some rare ones. K-Lite Mega Codec Pack is a combination of K-Lite Codec Pack Full, Real Alternative and a number of additional components that are not present in other K-Lite Codec editions. K-Lite Mega Codec Pack contains a collection of audio and video components (codecs, DirectShow filters and tools) that enable playing audio and video formats on Microsoft Windows.