www.bungie.net | halo.bungie.net | bungiestore.com
go to this link and look right under the "no boxshot available" in tech info. it says online system link ect then 480p then 720p!http://www.gamespot.com/xbox/action/halo2/index.html
I love Gamespot but they are not always accurate. The FAQ on this site as well as comments on others I have read all point to 480p Widescreen...