Where to download codecs?

What is a codec?

Codec (enCOder/DECoder or COmpressor/DECompressor): software (or hardware) that compresses and decompresses audio and video data streams. The purpose of codecs is to reduce the size of digital audio samples and video frames in order to speed up transmission and save storage space. Codecs may also be able to transcode from one digital format to another; for example, from PCM audio to MP3 audio.

Some popular codecs

VIDEO CODECS

FFDShow MPEG-4
DivX 6.4
Koepi's XviD Codec
DivX Free
DScaler MPEG Filters
OggDS / OGM Codec
Nic's XviD Codec
Ligos Indeo Codec

http://www.free-codecs.com/FFDShow_download.htm