K-Lite Mega Codec Pack Free Download

K-Lite Mega Codec Pack V4.9.0 is a free software bundle for playing all your audio and video files. It contains everything you need.

Same as Full, plus:

A few ACM/VFW codecs such as x264VFW
This type of codec is used by certain video editing/encoding applications for working with AVI files.
These codecs are not used or needed for normal playback.
The codec pack does not magically expand the import abilities of professional editors such as Vegas or Premiere. Those applications usually (only) use their own internal codecs and only support import of specific file formats.
And a few optional extras:

ffdshow audio/video decoder
An alternative choice for LAV Audio/Video decoder.
ffdshow audio/video processor
This is not something that regular users need.
AC3Filter
An alternative choice for LAV Audio decoder.
Haali Media Splitter
An alternative choice for LAV Splitter.
Haali Matroska Muxer
Note 1: Mega does not allow you to play more formats than Full.
Note 2: The optional extras are not installed unless you explicitly select them.
Note 3: We highly recommend to use the default LAV decoder and splitter. The alternative choices should not be used unless you have a good reason.