Halo 3 Essentials

Disc One

 * Only compatible with the Xbox 360.
 * Included in both Collector’s and Legendary editions.
 * A/V calibration tool.
 * Exclusive Halo 3 gamer pictures and dashboard theme.
 * Gallery of concept and production art (set to music).
 * The popular internet flash game Warthog Launch (available here).
 * Bungie guided network set-up.
 * Typical day at Bungie Studios.
 * Making of Halo 3.

Disc Two

 * Usable on anything that plays standard DVDs.
 * Only included in the Legendary Edition of Halo 3.
 * Completely remastered, high resolution versions of the Halo and Halo 2 cinematics with 5.1 audio and an optional "Director’s Commentary" track featuring Martin O'Donnell, Joseph Staten, and Jason Jones.
 * Bestiarum: An expanded digital guide to the creatures, cultures, and worlds of Halo 3, with art and assets exclusive to this interactive edition.
 * The Cortana Chronicles: Jen Taylor, the voice of Cortana, takes us on a tour of the worldwide Halo fan community, where she meets Halo fanatics from near and far, obscure and famous alike.
 * All-new, exclusive Machinima episodes from Red Vs. Blue and This Spartan Life, as well as a novel "mockumentary" voiced by Sgt. Johnson himself, David Scully.