X Codec Pack is not just another codec pack. Only the most used and popular codecs are included in this comprehensive pack. If you are looking for a big pack with lots of codecs, filters, tools, this is the wrong place. Lots of codecs can mess up Windows.
Unlike other codec packs, you can select the components you want to install, you get uninstall support, detection for previous installed versions, update for new versions - you don't have to download the whole pack again, support for unattended installs.
inside the package
DivX Codec - website
XviD codec - website | Koepi???s website
AC3 Filter - website
DivX AntiFreeze - website
DirectVobSub (VSFilter) - website
DivX G400 - website
Video inSpector - website
Media Player Classic - website