XviD Codec 1.3.3

Superb program that compresses videos for backup or sharing

Publisher: Xvid  Rating: 5.5 out of 10 (125 votes)

Windows Essentials Codec Pack 4.6

Add-on product that helps the software suite read more file types

Publisher: Media Codec 

Windows 7 Codec Pack 4.0.1

An all-in-one codecs pack for Windows 7 users

Publisher: Windows 7 Codecs  Rating: 5.8 out of 10 (110 votes)

K-Lite Codec Pack Mega 12.4.4

Expansion for K-Lite player increasing its format support

Publisher: Codec Guide  Rating: 6.8 out of 10 (206 votes)

Media Player Codec Pack 4.4.1

Play various media files in all formats

Publisher:   Rating: 7.1 out of 10 (47 votes)

MPCStar 4.2

All-in-one music player that stores and plays music and videos

Publisher:   Rating: 7.6 out of 10 (209 votes)

K-Lite Codec Pack Full 12.1.5

Plays audio and video files that have been downloaded

Publisher: Free-codecs  Rating: 7.3 out of 10 (421 votes)

MPEG-2 Video Decoder 2.0

Decodes MPEG-2 videos, making them compatible with more media player programs

Publisher: MundoDivX  Rating: 6.5 out of 10 (30 votes)

CoreAVC Pro 1.8.5

Proprietary codec for decoding AVC video files

Publisher: CoreCodec  Rating: 5.0 out of 10 (21 votes)

K-Lite Codec Pack Basic 11.8.5

A set of basic plugins for players that use DirectShow

Publisher: Free-codecs  Rating: 5.8 out of 10 (26 votes)