With the K-Lite Codec Pack you should be able to play all the popular movie formats and even some rare formats. This package is mainly for power users and people who do their own encodings.

Features of K-Lite Mega Codec Pack 4.4.2 :

• Player:
- Media Player Classic [version 6.4.9.1 rev. 86]
- Media Player Classic Home Cinema [version 1.1.904]
• ffdshow:
- ffdshow [revision 2364]
- ffdshow VFW interface
- extra plugins
• DirectShow video decoding filters:
- XviD [version 1.2.0 build 2008-01-10]
- DivX [version 6.8.5]
- On2 VP6 [version 6.4.2.0]
- On2 VP7 [version 7.0.10.0]
- MPEG-2 (Cyberlink) [version 8.1.0.1608]
- MPEG-2 (Gabest) [version 1.0.0.4]
- MPEG-1 (MainConcept) [version 1.0.0.78]
• DirectShow audio decoding filters:
- AC3/DTS/LPCM (AC3Filter) [version 1.51a]
- Vorbis (CoreVorbis) [version 1.1.0.79]
- AAC (MONOGRAM) [version 0.9.5.0]
• DirectShow audio parsers:
- MusePack (MONOGRAM) [version 0.9.1.2 | 0.3.1.2]
- WavPack (CoreWavPack) [version 1.1.1]
- FLAC (madFLAC) [version 1.8]
- Monkey's Audio (DCoder) [version 1.0]
- OptimFROG (RadLight) [version 1.0.0.1]
- DC-Bass Source [version 1.2.0]
- AC3/DTS Source (AC3File) [version 0.5b]
- AMR (MONOGRAM) [version 1.0.1.0]
• DirectShow source filters:
- AVI splitter (Gabest) [version 1.0.0.9]
- AVI splitter (Haali Media Splitter) [version 1.8.122.18]
- MP4 splitter (Haali Media Splitter) [version 1.8.122.18]
- MP4 splitter (Gabest) [version 1.0.0.4]
- Matroska splitter (Haali Media Splitter) [version 1.8.122.18]
- Matroska splitter (Gabest) [version 1.0.3.0]
- Ogg splitter (Haali Media Splitter) [version 1.8.122.18]
- Ogg splitter (Gabest) [version 1.0.0.1]
- MPEG PS/TS splitter (Gabest) [version 1.0.0.4]
- MPEG PS/TS splitter (Haali Media Splitter) [version 1.8.122.18]
- FLV splitter (Gabest) [version 1.0.0.5]
- CDXA Reader (Gabest) [version 1.0.0.2]
• DirectShow subtitle filter:
- DirectVobSub (a.k.a. VSFilter) [version 2.39]
- DirectVobSub (a.k.a. VSFilter) [version 2.33]
• Other filters:
- Haali Video Renderer [version 1.8.122.18]
• VFW video codecs:
- XviD [version 1.2.0 build 2008-01-10]
- DivX [version 6.8.5]
- x264 [revision 1032]
- On2 VP6 [version 6.4.2.0]
- On2 VP7 [version 7.0.10.0]
- Intel Indeo 4 [version 4.51.16.2]
- Intel Indeo 5 [version 5.2562.15.54]
- Intel I.263 [version 2.55.1.16]
- huffyuv [version 2.1.1 CCE Patch 0.2.5]
- YV12 (Helix) [version 1.2]
• ACM audio codecs:
- MP3 (Fraunhofer) [version 3.4.0.0]
- MP3 (LAME) [version 3.98.2]
- AC3ACM [version 1.4]
- Vorbis [version 0.0.3.6]
- DivX Audio [version 4.2.0.0]
• Real Alternative:
- RealMedia codecs [version 6.0.14.826]
- RealMedia plugin for Internet Explorer
- RealMedia plugin for Firefox/Mozilla/Netscape/Opera/Chrome
- RealMedia DirectShow splitter [version 1.0.1.2]
• Tools:
- Codec Tweak Tool [version 2.2.9]
- GSpot Codec Information Appliance [version 2.70a]
- MediaInfo Lite [version 0.7.7.8]
- VobSubStrip [version 0.11]
- GraphStudio [0.3.0.0]
- Haali Muxer
- FourCC Changer
- Bitrate Calculator

Changes from K-Lite Mega Codec Pack 4.3.4 to K-Lite Mega Codec Pack 4.4.2 :

- Updated Media Player Classic to version 6.4.9.1 rev. 91
- Updated Media Player Classic Homecinema to version 1.2.929.0
- The Homecinema version of MPC is now used by default
- Updated ffdshow to revision 2527
- Updated Matroska splitter (Gabest) to version 1.0.3.1
- Updated MP4 splitter (Gabest) to version 1.0.0.5
- Updated Ogg splitter (Gabest) to version 1.0.0.2
- Updated MPEG splitter (Gabest) to version 1.2.925.0
- Updated Xvid to version 1.2.1
- Updated x264VFW to revision 1042
- Updated MediaInfo Lite to version 0.7.8
- Updated GraphStudio to version 0.3.1.0
- Some compatibility improvements
- Detection of broken codecs/filters now also analyzes 64-bit items

Important Note :

- The K-Lite Mega Codec Pack works only on Windows 2000/XP/2003/Vista.