From Gamerscore blog:
"Dear Xbox LIVE Member,
When we launched Xbox 360 in November 2005, Xbox LIVE was integrated directly into the console. Back then, Xbox 360 was the first system to deliver access to experiences beyond just the disc in the tray. With the Xbox guide and dashboard you had access to everything on your console as well as your community.
Play from hard drive. Copy your games from the game disc and play directly from the hard drive. Not only will the drive not spin, but load times are quicker, as well. Of course, you will still need the disc in the tray to prove you own the game."
