1)   Codec Pack (Advanced) 6.0.3
The Cole2k Media advanced codec package features a collection of codecs and filters for encoding/decoding a large variety of video/audio formats
DivX, 3ivx, XviD, ffdshow, MP4, AVC, h.264, AC3, DTS, AAC,

 2)   Elecard MPEG-2 Encoder Pack 4.0
Codec pack comprising Elecard components for encoding, multiplexing, and archiving media data for further DVD creation, broadcasting, use in video on demand services. Directshow compatible dvd encoder.
codec pack, dvd encoder, mpeg encoder, mpeg2 encoder, multiplexer, directshow, filter, video compression,

 3)   Codec Pack - Standard 6.0.5
The Cole2k Media standard codec package features a collection of codecs and filters for encoding/decoding
Audio, Video, Codecs, Codec, Codec Pack, DivX, 3ivx, XviD, ffdshow, MP4,

 4)   K-Lite Codec Pack 3.1.5
K-Lite Codec Pack is a collection of codecs and DirectShow filters. Those components are needed for encoding and decoding various audio and video formats. This Codec Pack is designed as a user-friendly solution for playing all your movie files.
k-lite, codecs, direct show filters, video, audio, divx, ac3, codec pack,