Disc One Edit
- 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 Edit
- Usable on anything that plays standard DVDs.
- Only included in the Halo 3 Legendary Edition.
- 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.