Microsoft has announced the first details of the various editions of Halo 3 that will be available this “Autumn”. There will be three versions of the game: the Standard Edition, Limited Edition and the collector’s item “Legendary” Edition.

The Legendary edition will be released in limited quantities and arrive in a collectible Spartan helmet case with two bonus disks full of additional content. The first disk will offer behind-the-scenes footage and videos, including a HD version of “Making of Halo 3″ documentary. It will also feature other HD featurettes documenting the development of the game, from its early concepts to the final finished product. The disk will also include an audio-visual calibration tool designed by the Halo 3 graphics and audio team to make the most of their fans’ HD home cinemas for the ultimate audio and video performance.

The second disk will include completely remastered cinematic material from Halo and Halo 2, including developer commentaries. It will also offer a featurette documenting the life of Bungie’s employees; exclusive content from machinima artists Red vs. Blue and This Spartan Life will also be included. Additionally, the Legendary edition will receive an illuminating collection of original Halo 3 storyboard art from artist Lee Wilson, depicting key moments and scenes.

For those who go for the Limited Edition will receive the first bonus disk found in the Legendary Edition, as well as a special fiction and art book. The Standard edition, as the name implies, will contain only the game itself.

No pricing details were revealed.