Codec is a computer program to encode or/and decode digital data stream. The word “Codec” is portmanteau of ‘compressor-decompressor’ or, ‘coder-decoder’. The Media Codec Pack is bundle of audio and video resources that helps your opearting system to run diffrent media format files.

The K-Lite Codec Pack is a collection of diffrent codecs, and tools. With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even several less common formats. I think it is the best Codec pack for Microsoft‘s Windows 7.

K-Lite codec pack also provide a list of related tools like GSpot Codec Information Appliance, Media Player Classic Player and Codec Tweak Tool. K-Lite has four different editions. They are Basic, Standard, Full and Mega. I recommend to go for the Mega edition because it will support all major media formats like these.

.avi, .divx, .flv, .mkv, .mpg, .mpeg, .m1v, .mpe, .m2v, .mpv2, .mp2v, .m2p, .vob, .evo, .mod, .ts, .m2ts, .m2t, 
.mts, .pva, .tp, .tpr , .mp4, .m4v, .mp4v, .mpv4, .m4a, .3gp, .3gpp, .3g2, .3gp2, .ogg, .ogm, .ogv, .mov, .hdmov 
.qt, .webm, .amv, .rm, .rmvb, .mka, .mp3, .oga, .amr, .wav, .ac3, .dts, .alac, .ape, .apl, .aac, .ra, .ram, .flac

K-lite Codec pack is also available for 32bit and64bit operating systems. Click this link if you’d like to download K-Lite Codec Pack and It’s also a free software.