Since the project has such a generic name, it seems almost a
responsibility to list other projects that have implemented other
codecs for quicktime. The one's i've found are:
Divx http://roines.net/project/ffmpegqt or google for ffusion
WMA (on sourceforge).
It would be really great to have a listing of all this stuff in one
place, especially as ffusion and the wma one are both based on
ffmpeg, and could possibly be united.