The K-Lite Codec Pack is a collection of DirectShow filters, VFW/ACM codecs, and tools. Codecs and DirectShow filters are needed for encoding and decoding audio and video formats. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your audio and movie files. With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even several less common formats.

General strong points:

Advantages of the pack compared to installing codecs manually:

Advantages of the codec pack compared to using only MPC-HC:

Unique features compared to other codec packs:

 

Variants

There are four variants of the K-Lite Codec Pack:
The basic variant contains everything you need to play all the common video file formats. Such as AVI, MKV, MP4, OGM, and FLV. This pack is for those who like a small no-nonsense pack. It is small, but powerful.
The standard variant contains a few additional features compared to the basic variant. It contains Media Player Classic, which is an excellent player for video files. It also has (better) support for playback of DVDs. This pack is recommended for the average user.
The full variant has some extras compared to the standard variant. It additionally contains madVR, GraphStudioNext, and a few more audio decoders. This package is suitable for power users.
The mega variant is the most complete pack. It additionally contains VFW/ACM codecs for video encoding/editing. It also contains a few extra tools and DirectShow filters.
For detailed tables with comparisons of the abilities and contents of the different variants of the codec pack, have a look at the comparison of abilities and comparison of contents pages.
The four variants of the codec pack mentioned above are all 32-bit. There also is a 64-bit version of the codec pack.
If you have a x64 version of Windows, then it is recommended to install both a 32-bit and a 64-bit version of the codec pack. They work together in complete harmony. It is important to also have 32-bit codecs on a 64-bit system because many applications are still 32-bit, including Windows Media Player!!!

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