what is codec
Codec. 1. Short for COmpression / DECompression, a codec is an algorithm or special computer program that reduces the number of bytes consumed by large files. Codecs are often used with videos distributed over the Internet; allowing what would normally be a very large video file to be much smaller.ne of our most recommended codec pack is the CCCP also known as the Combined Community Codec Pack you can find this download on their web page. Also, Free-Codecs.com is another great collection under Codec Pack All in 1. Finally, a great list of hundreds of different codecs is found on fourcc.