The K-Lite Codec Pack has a couple of major advantages compared to other codec packs:
It is updated frequently. So it is always up-to-date with the newest and/or best components.
All components have been carefully selected for specific purposes. It is not just a random bunch of stuff thrown together.
It is very user-friendly and easy to use.
Works great with Windows Media Player and Windows Media Center. But also with all other DirectShow players, such as Media Player Classic, BS.Player, ZoomPlayer, and others.
The installation is fully customizable, meaning that you are able to install just those components that you really want.
The pack has many options, which allows you to tweak it to your own specific needs and preferences.
Changes in version 7.1.5:
Changes in version 7.1.2: