You all know the score by now the game disc needs to be kept in the drive, but its only accessed once everything else is accessed from the hard disk. The result is that the Xbox 360 is much, much quieter during gameplay. Play a demo from the Live Marketplace and thats exactly the same level of noise youll be getting. The question is, what other benefits are there?
Most Xbox 360 games are already optimised to cache to the hard disk its the main reason why theres only 12GB available on the original 20GB hard disk.
Although Ill need to look at this a bit more scientifically (ie checking in stuff like pop-in on Gears of War or GTAIV), theres no doubt that spooling to hard disk results in a welcome speed bump. Here are a few games I checked out: