Finally, the mega version throws in the ACM and VFW codecs, plus a few more useful additions. The full edition sprinkles in the ffdshow, DScaler5 MPEG-2 decoder, and GraphStudioNext features, among others. Standard adds madVR, MediaInfo Lite, and MPC-HC to the table. The basic one offers compatibility for AVI, MKV, MP4, FLV, and many other file types. These are the basic, standard, full, and mega packs. Each of these is meant to provide a solution for specific operating systems. It’s a useful tool for limited operating systems. Expand on the media elements your computer can run using K-Lite Codec Pack.