for me:
1. open keybinding tool
2. select any bind option
3. select any Media key.
4. select and remove it as an option.
5. the key is broken/unbound.

One problem is everything is "disabled" and I like my media keys to be vol
up/down/mute  etc...  When i try to set my keys it givs me a (keycode) is
already bound to the first item in the keybinding list.  So i try and set the
first keybind with that same key, and it says the one under it is already bound.  

This seems to be a major problem, however I am the first around me (with others
compiling 2.6 now) to be using it.  So I am assuming this is happining to other
people.