I've been waiting for this for such a long time. XviD is no more. The Scene has released new rules that stipulate that the x264 codec will be used with the mp4 container for SD TV content. So for all of you downloading XviD stuff everyday, your standard DivX player won't be able to play these files. Luckily, a lot of people have invested in proper media players, so this shouldn't be a problem for them.

http://scenenotice.org/details.php?id=2028