DivX and Xvid file compatibility is among the more prominent of changes Xbox 360 users will see with the installment of a December 4 patch planned by Microsoft.
The company recently announced the video codec support, officially under the umbrella of of MPEG-4 Part 2 specifications.
The same feature was recently announced for the PlayStation 3, though no firm date for that system's update was given.
Other, previously announced, changes include a new program allowing 360 owners to buy and download original Xbox games and a "Friend of Friend" Xbox Live buddy list feature.
A comprehensive list of all planned changes is also available.
On the list is a myriad of minor changes to the user interface for media use and playback and extra Windows Media Player 11 compatibility, deinterlacer support and improved video playback at certain resolutions.