Quicktime for Mac and Dattebayo releases issues

[dougoftheabaci]

OK basically I'm using QuickTime for my primary media player (I like being able to use FrontRow) and I recently got a new hard drive and had to reinstall OS X. Well I don't remember what codec I had downloaded that allowed me to play Dattebayo releases.

OS: Mac OS X 10.5.4
Player: QuickTime 7.5

Installed Codecs:
DiVX
Flip4Mac
Perian
(And all the standard Apple components)

I have VLC player installed and yes I'm aware it can play them but I like using QuickTime since there are benefits in terms of integration with OS X. Perian tries to play it but because it's in an AVI it can't.

Otherwise h.264 support is there but it needs to be able to access it inside an AVI file. Does anyone know the codec I need?