K-Lite Codec / Mega Codec Pack v 4.5.3 - Free Download

K-Lite Codec Pack is a collection of codecs and related tools. Codec is short for Compressor-Decompressor. Codecs are needed for encoding and decoding (playing) audio and video. This Codec Pack is designed as a user-friendly solution for playing all your movie files. You should be able to play all the popular movie formats and even some rare formats.
The K-Lite Codec Pack has a couple of major advantages compared to other codec packs: It it always very up-to-date with the latest versions of the codecs; It is very user-friendly and the installation is fully customizable, meaning that you can install only those components that you really want; It has been very well tested, so that the package doesn't contain any conflicting codecs; It is a very complete package, containing everything you need to play your movies; and has different packages.

Changelog 4.4.5 -> 4.5.3 | (2009-01-16)
Updated Media Player Classic Homecinema to version 1.2.972.0
Updated ffdshow to revision 2624
Added option to use experimental MT version of ffdshow. That has betterH.264 decoding performance on multi-core processors.
Updated Haali Media Splitter to version 1.9.42.1
Updated Ogg splitter (Gabest) to version 1.2.972.0
Updated MPEG splitter (Gabest) to version 1.2.972.0
The "Auto-load VSzxc" setting for Haali Media Splitter is now enabled by default

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K-Lite Mega Codec Pack v 4.5.3
K-Lite Codec Pack v 4.5.3