Features of K-Lite Mega Codec Pack 3.4.0:
Player:
* Media Player Classic [version 6.4.9.0+ | build 2007-08-28]
ffdshow:
* ffdshow [revision 1446]
* ffdshow VFW interface
* extra plugins
DirectShow video filters:
* XviD [version 1.2.0-dev build 2007-07-25]
* DivX [version 6.6.1.4]
* CoreAVC [version 1.5.0.0]
* On2 VP6 [version 6.4.2.0]
* On2 VP7 [version 7.0.10.0]
* MPEG-2 (Cyberlink) [version 8.0.0.1828]
* MPEG-2 (Gabest) [version 1.0.0.3+]
* MPEG-1 (MainConcept) [version 1.0.0.78]
DirectShow audio filters:
* MP3 (Fraunhofer) [version 1.9.0.311]
* AC3/DTS/LPCM (AC3Filter) [version 1.46]
* Vorbis (CoreVorbis) [version 1.1.0.79]
* AAC (CoreAAC) [version 1.2.0.575]
* MusePack (RadLight) [version 1.0.0.4]
* WavPack (CoreWavPack) [version 1.1.0]
* OptimFROG (RadLight) [version 1.0.0.1]
* DC-Bass Source [version 1.1.0.0]
DirectShow source filters:
* AVI splitter (Gabest) [version 1.0.0.7+]
* AVI splitter (Haali Media Splitter) [version 1.7.189.11]
* MP4 splitter (Haali Media Splitter) [version 1.7.189.11]
* MP4 splitter (Gabest) [version 1.0.0.3+]
* Matroska splitter (Haali Media Splitter) [version 1.7.189.11]
* Matroska splitter (Gabest) [version 1.0.2.9+]
* Ogg splitter (Haali Media Splitter) [version 1.7.189.11]
* Ogg splitter (Gabest) [version 1.0.0.0+]
* MPEG PS/TS splitter (Gabest) [version 1.0.0.3+]
* MPEG PS/TS splitter (Haali Media Splitter) [version 1.7.189.11]
* FLV splitter (Gabest) [version 1.0.0.2+]
* CDDA Reader (Gabest) [version 1.0.0.1]
* CDXA Reader (Gabest) [version 1.0.0.1]
* AC3/DTS Source (AC3File) [version 0.5b]
DirectShow subtitle filter:
* DirectVobSub (a.k.a. VSFilter) [version 2.37 + fixes]
VFW video codecs:
* XviD [version 1.2.0-dev build 2007-07-25]
* DivX Pro [version 6.6.1.4]
* x264 [revision 606]
* 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]
* I420 (Helix) [version 1.2]
* YV12 (Helix) [version 1.2]
ACM audio codecs:
* MP3 (Fraunhofer) [version 3.4.0.0]
* MP3 (LAME) [version 3.97]
* AC3ACM [version 1.3.1]
* AC3Filter.ACM [version 1.46]
* Vorbis [version 0.0.3.6]
* DivX ;) Audio [version 4.2.0.0]
Real Alternative:
* RealMedia codecs [version 6.0.12.1741]
* RealMedia plugin for Internet Explorer
* RealMedia plugin for Firefox/Mozilla/Netscape/Opera
* RealMedia DirectShow splitter [version 1.0.1.2]
Tools:
* Codec Tweak Tool [version 2.1.3]
* GSpot Codec Information Appliance [version 2.70a]
* VobSubStrip [version 0.11]
* GraphEdit [build 041201]
* AVI Fixed [version 2.0b1]
* FourCC Changer
* Bitrate Calculator

Changes in K-Lite Mega Codec Pack 3.4.0 (2007-08-31):
* Updated Media Player Classic
* Updated ffdshow to revision 1446
* Updated CoreAVC to version 1.5
* Updated AC3Filter to version 1.46
* Updated AC3Filter.ACM to version 1.46
* Updated FLV splitter
* Added AC3ACM
* Minor changes