XviD is a video codec similar to DivX, but better. Majority of a new movies encoded with this video codec, so to play movies you need to install better video codec then DivX and it is XviD, it is like dark side of the Divx. Mirror of DivX video codec.

Download XviD video codec 1.2.2, realesed this June, 2009

And one more, huge advantage, XviD video codec is a absolutely free, plays much better MPEG-4 movies.

Features of Koepi’s XviD Codec :

• Workaround for nasm bug with Mach-O/OSX target
• Fix for missing resync marker range check (reported by IBM X-Force. Thanks go to John McDonald and Christopher Valasek)
• Improved precision for RGB<->YUV conversions
• Fix for potential RGB24 access violation
• Updated compiler options for Apple PPC target
• Fixed MSVC6 projects to work for path names with spaces

By the way on present moment it is the most successful video codec on earth, a lot DVD players started support this format by default, pupolarity speaks for all.