K-LITE Mega Codec pack, as other code packs, includes all you need to play all audio and video formats you can find around the net.
Basically, this pack is a mix of:
- K-lite Codec Pack Full
- QuickTime Alternative
- Real Alternative
and some more like:
- BSPlayer
- Plugins for Media Player Classic
In short, if you have K-Lite Mega Code Pack installed you will not have any problem when playing your multimedia files.