K-Lite Codec Pack in various versions contains all the most popular codecs for playback and video encoding (except for versions of Basic). QuickTime Alternative and Real Alternative are additional packages in order to play the respective formats and contain the basic components of the official players. K-Lite Mega Codec Pack includes the last two packages and a complete set of codecs from version Full. In all the options included a powerful alternative media player Media Player Classic.

Compare package versions:
• K-Lite Codec Pack Basic - contains everything you need to play most common video files such as AVI, MKV, MP4, OGM, and FLV. This package has the smallest size.
• K-Lite Codec Pack Standard - has everything to play most media files. This package will be sufficient for the needs of more experienced user.
• K-Lite Codec Pack Full - except codecs, filters and tools that are included in the standard set also contains all the necessary things for encoding video and audio. It may be useful to advanced users and professionals.
• K-Lite Codec Pack Corporate - special version for use in a corporate environment. It contains almost everything and the full version. Has a strict focus on the software with open source software (Open Source).
• K-Lite Mega Codec Pack - This version of the package contains all the codecs and programs that are included in the full version, plus QuickTime Alternative and Real Alternative.

Features of the package:
"The latest version of the best codecs
"All the components are chosen so that there have been no conflicts between them
"Installing the package is very simple, if you wish, you can choose only those codecs and tools that you really need
"At any moment can be totally or partially remove the package, leaving at the same time, no trace of his stay, including the registry keys
"Each version of the package carefully tested for the presence of possible conflicts between the codecs and other programs
»K-Lite Codec Pack is trying to avoid problems between the new and already installed codecs on your computer, and can even solve some of the existing

Changes in K-Lite Codec Pack Full 5.4.0 | 2009-11-04:
Updated Media Player Classic Home Cinema to version 1.3.1330.0
Added version 1.2.1008 of MPC-HC as alternative for those who have problems with the newer versions
Updated ffdshow to revision 3126
Added preferred filter tweaker for Windows 7
Updated MediaInfo Lite to version 0.7.24
Options to install secondary decoders: DivX H.264 decoder, Monogram AAC decoder, Gabest AVI splitter
Secondary decoders are disabled by default and can be activated with the Codec Tweak Tool
Fixed settings issue when user chose to store MPC settings in an INI file
Moved Media Player Classic DXVA options to a separate page so that people notice it better
The DXVA H.264 decoder is now disabled by default to prevent people with a buggy graphics driver to get playback troubles
Minor changes

Changes in K-Lite Codec Pack Standard 5.4.0 | 2009-11-04:
Updated Media Player Classic Home Cinema to version 1.3.1330.0
Added version 1.2.1008 of MPC-HC as alternative for those who have problems with the newer versions
Updated ffdshow to revision 3126
Added preferred filter tweaker for Windows 7
Updated MediaInfo Lite to version 0.7.24
Fixed settings issue when user chose to store MPC settings in an INI file

Moved Media Player Classic DXVA options to a separate page so that people notice it better
The DXVA H.264 decoder is now disabled by default to prevent people with a buggy graphics driver to get playback troubles
Minor changes