XviD is the correct spelling of the codec.
You can see it written in the codec own
documentation and header files.
Prefered name capitalization confirmed
in conversation with XviD developer (prunedtree).
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26915 b3059339-0415-0410-9bf9-f77b7e298cf2