XviD is a video codec just like DivX. Most new movies and videos are being encoded with XviD.
The XviD Codec is needed to play movies encoded by XviD. XviD is better than DivX.

XviD is the best currently available MPEG-4 video codec solution and additionally XviD is free software!

The license of this software is Freeware, you can free download and free use this codec pack software.