K-Lite Mega Codec Pack 1.16 (выпущен раньше чем K-Lite Codec Pack 2.60 full)
Installation instructions:

It is highly recommended to first uninstall all existing codec related packages before installing this package. This way your system stays clean and potential problems will be avoided. You can remove them in Start Menu > Settings > Control Panel > Add/Remove Programs (Software).

Features & Notes:

BSplayer [version 1.02.812]
This is a full-featured player. It has some nice features for playing movies through your TV-out.
Media Player Classic [version 6.4.8.2]
This is a full-featured player. Has internal decoding support for DVD, MPEG-2, DTS, Matroska, OGM and some other formats. It plays QuickTime and RealMedia (if those codecs are installed).

DivX Pro [version 5.2.1] [Decoding]
This is required for playing DivX movies. DivX is the second most popular format.
DivX Pro [version 5.1.1] [Encoding]
This is required for encoding movies in the DivX format.
DivX ;) MPEG-4 Low and Fast motion [version 4.1.0.3927]
This is an old version (3.11) of DivX. Only required for those who want to use it to encode something. 
XviD [version 1.0.2 build 2004-08-29] [Decoding]
This is required for playing XviD movies. XviD is currently the most popular format.
XviD [version 1.0.2 build 2004-08-29] [Encoding]
This is required for encoding movies in the XviD format.
3ivX Pro [version D4 4.5.1] [Decoding]
This is required for playing 3ivX movies.
Required for opening audio and video streams in a MP4 container (.mp4 files).
Also contains playback support for AAC audio streams.
3ivX Pro [version D4 4.5.1] [Encoding]
This is required for encoding movies in the 3ivX format.
Also contains DirectShow encoder for AAC audio.
Windows Media 7 [version 7.1.0.3055]
This is required for playing movies and audio that are in the Windows Media 7 format.
Windows Media 8 [version 8.0.0.371]
This is required for playing movies and audio that are in the Windows Media 8 format.
Windows Media 9 [version 10.0.0.3646]
This is required for playing movies and audio that are in the Windows Media 9 format.
Windows Media 9 VCM [version 9.0.1.369]
This is required for playing movies and audio that are in the Windows Media 9 format.
On2 VP3 [version 3.2.5.0]
This is required for playing VP3 movies. These are NOT very common.
On2 VP6 [version 6.2.0.10] [Decoding]
This is required for playing VP6 movies. These are NOT very common.
On2 VP6 [version 6.2.0.10] [Encoding]
This is required for encoding movies in the VP6 format.
Cyberlink DVD decoder [version 5.0.0.1130]
This can be used to play DVDs in some players (and if you have a DVD drive in your PC).
Not required if you use Media Player Classic, because it has an internal DVD decoder.
Ligos Indeo XP [version 5.2820.15.58]
Required for playing movies that have the Indeo 5 format.
Intel Indeo [version 4.51.16.2]
Required for playing movies that have the Indeo 4 format.
Intel Indeo [version 3.24.15.03]
Required for playing movies that have the Indeo 3 format.
Intel I.263 [version 2.55.1.16]
Required for playing movies that have the I.263 format.
huffyuv [version 2.2.0]
Required for playing movies that have the huffyuv format.
Required for encoding movies in the huffyuv format.
Huffyuv is a lossless (no quality loss) video compression format.
MS MPEG-4 [version 4.1.0.3927]
Required for playing movies that have the MS MPEG-4 format.
Ligos/Elecard/MainConcept MPEG-2 demuxers & decoders
Required for playing MPEG-2 (and SVCD) movies.
Not required if you use Media Player Classic, because it has an internal MPEG-2 decoder.
There are 7 combinations of dexumers and decoders available. If you don't know which one to choose, then the Elecard / Ligos combination is recommended.

QuickTime codecs [version 6.5.2.10]
Required for playing QuickTime movies and audio.
QuickTime DirectShow filter
Allows you to play QuickTime content in all DirectShow enabled players.
Without this filter QuickTime content can only be played in Media Player Classic.
QuickTime plugin for Internet Explorer
Allows you to view QuickTime content that is embedded in a webpage.
This is installed together with the QuickTime codecs.
QuickTime plugin for Firefox/Mozilla/Netscape/Opera
Allows you to view QuickTime content that is embedded in a webpage.
Extra QuickTime plugins
Plugins for viewing some special formats that are sometimes used on webpages.

RealMedia codecs [version 6.0.12.1056]
Required for playing RealMedia movies and audio.
RealMedia .smi and .smil files are not fully supported. Only the first part of a clip will be played.
RealMedia DirectShow splitter [version 1.0.0.9]
Allows you to play RealMedia content in all DirectShow enabled players.
Without this filter RealMedia content can only be played in Media Player Classic.
RealMedia plugin for Internet Explorer
Allows you to view RealMedia content that is embedded in a webpage.
This is installed together with the RealMedia codecs.
RealMedia plugin for Firefox/Mozilla/Netscape/Opera
Allows you to view RealMedia content that is embedded in a webpage.

Fraunhofer MP3 DirectShow decoder [version 1.9.0.311]
Required for playing movies that have a MP3 audio stream.
WMA DirectShow decoder [version 8.0.0.4487]
Required for playing movies that have a WMA audio stream.
AC3 DirectShow decoder [version 0.70b mod]
Required for playing movies that have an AC3 audio stream.
AC3 ACM decoder [version 0.7]
Required for playing movies that have an AC3 audio stream.
Vorbis DirectShow decoder (CoreVorbis) [version 1.0]
Required for playing movies that have a Vorbis audio stream.
AAC DirectShow decoder (CoreAAC) [version 1.0b9]
Required for playing movies that have an AAC audio stream.
Not required if you install 3ivx [Decoding].
MusePack DirectShow decoder [version 1.0.0.3]
Required for playing MusePack audio files.
Voxware DirectShow decoder [version 1.0.0.12]
Required for playing movies that have a Voxware audio stream.
Monkey's Audio DirectShow decoder [version 1.00]
Required for playing Monkey's audio files (.ape).
Monkey's Audio is a lossless (no quality loss) audio compresion format.
LAME MP3 Encoder [version 3.96.1]
This can be used to encode MP3 streams/files.

Ogg DirectShow splitter [version 0.9.9.5] and Vorbis DLLs [version 1.1.0]
Required for opening audio and video streams in an Ogg container (.ogm files).
Not required if you use Media Player Classic to play these types of files.
Matroska DirectShow splitter [version 1.0.2.4]
Required for opening audio and video streams in a Matroska container (.mkv and .mka files).
Not required if you use Media Player Classic to play these types of files.
Matroska DirectShow muxer [version 1.0.0.9]
Can be used to mux audio and video streams into a Matroska container.
DirectVobSub (vsfilter) [version 2.33]
DirectVobSub is a tool for displaying subtitles. Your subtitle file should have the same filename as your video file (for example Movie.avi and Movie.sub) and should be in the same folder as your video file. Then the subtitles will automatically be displayed in most players.
Matrix Mixer [version 0.30b]
Matrix Mixer can be used to amplify the sound of a video file. It also can mix stereo sound to multiple channels (useful for 4.1 and higher speaker sets).
SHOUTcast Source [version 1.0.0.1]
This can be used to play SHOUTcast streams in any DirectShow enabled player.
Morgan Multimedia Stream Switcher [version 0.9.9]
Morgan Multimedia Stream Switcher can be used to switch between two audio streams in a video file that has two audio streams. These types of video files are not very common. BSplayer also has this functionality built-in. So if you use BSplayer, you don't need to install this.
DivX Anti-Freeze [version 0.4]    (CAUTION - not recommended!)
This prevents freezing of some players when playing a damaged DivX movie. This filter is not needed with the current version of DivX, only with old versions!
Warning! This filter causes problems with some programs like MovieMaker. It is not recommended to install this.

GSpot Codec Information Appliance [version 2.52 beta 1 build 2004-09-15]
GSpot is a tool that can tell you exactly which codecs are needed to play a certain video file. This is very helpful when you have troubles playing a video file.
FourCC Changer
The FourCC (Four Character Code) Changer is a program for changing the FourCC of a video file, which is used to identify which codec should be used to decode the file. This tool is for expert users only.
Bitrate Calculator
This can be used to calculate the bitrate to use when encoding a movie.