Cute how people become experts on the 360 when its faults are discussed.
There are many different types of Xbox 360s with different DVD drives. I can't remember the specifics, but I was a comparison chart once that you could use to see what kind of a drive you had by comparing the outline of the disc holding thingie to the ones in the pictures.
So it's definitely possible you have a quieter one, especially if it's pretty new.







