Are you the kind of person that uses the computer regularly? Do you care about the new software that comes out everyday? If you do, then you can check out: http://fileforum.betanews.com This is one of my favorite website for new software. Instead of spending a lot of time checking which software of yours has been updated, just sign up on the website, create a watch list and you will get an email when a particular software is released. For instance, I added K-Lite Mega Codec Pack to my list, and every time they have a new version comes out, I will get an email notice…its really simple and it does save you time if you care about new software like me 
Anyway, below is the new version of K-Lite Mega Codec Pack (version number: 2.2.5) from FileForum:
K-Lite Codec Pack is a collection of codecs and DirectShow filters. Those components are needed for encoding and decoding various audio and video formats. This Codec Pack is designed as a user-friendly solution for playing all your movie files.
K-Lite Mega Codec Pack combines the contents of two packs: K-Lite Codec Pack Full and Real Alternative.
Latest Changes:
- Updated ffdshow to revision 1320
- Removed DScaler5 MPEG decoder
- Removed MainConcept MPEG decoder
- Removed Ligos MPEG decoder
- Removed MainConcept MPEG audio decoder
- Removed Cyberlink MPEG splitter
- Removed MainConcept MPEG splitter
- Removed Ligos MPEG splitter
- Removed Elecard MPEG splitter
- All the removed MPEG stuff is still available in the K-Lite MPEG Pack. That can co-exist perfectly fine alongside the regular KLCP
- Fixed bug with Gabest MPEG splitter sometimes not installing properly
- Updated Codec Tweak Tool
- The MPEG-2/DVD decoder will now be deselected by default if nVidia PureVideo is detected as installed. The pack already did this for other popular decoders
- Improved file association creation/backup/restore
- Minor changes
http://fileforum.betanews.com/detail/KLite_Mega_Codec_Pack/1080441198/1
K-Lite Mega Codec Pack solve most of my codec problems, hope it solve yours as well 
