K-Lite Codec Pack is a collection of codecs and related tools. Codecs are required to encode and/or decode (play) audio and video. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your movie files. With the K-Lite Codec Pack you should be able to play 99% of all the movies that you download from the internet. The K-Lite Codec Pack works on Windows 2000/XP/2003/XP64/Vista.

There are three versions of the K-Lite Codec Pack: Basic, Standard and Full.
• K-Lite Codec Pack Basic contains only the most essential things. It contains everything you need to be able to play the most popular and widespread formats. It is small enough to fit on a single floppy. Also great for including on your movie CDs.
• K-Lite Codec Pack Standard contains everything you need to play all the commonly used formats. This package should be enough for the average user.
• K-Lite Codec Pack Full contains even more codecs. It also has encoding support for the various formats. This package is for power users and people who do their own encodings.

Changes from K-Lite Codec Pack 3.20 FULL to K-Lite Codec Pack 3.25 FULL :
- Updated ffdshow to revision 1320
- Removed DScaler5 MPEG decoder
- Removed MainConcept MPEG decoder
- Removed Ligos MPEG decoder
- Removed MainConcept MPEG audio decoder
- Removed Cyberlink MPEG splitter
- Removed MainConcept MPEG splitter
- Removed Ligos MPEG splitter
- Removed Elecard MPEG splitter
- All the removed MPEG stuff is still available in the K-Lite MPEG Pack. That can co-exist perfectly fine alongside the regular KLCP
- Fixed bug with Gabest MPEG splitter not always installing properly
- Updated Codec Tweak Tool
- The MPEG-2/DVD decoder will now be deselected by default if nVidia PureVideo is detected as installed. The pack already did this for other populair decoders
- Improved file association creation/backup/restore
- Minor changes