I'm also wondering about this, my slim does this too. anyone else? --- When I get that feeling I need sexual healing, SEXUAL HEALING BABY! and its good for us! Its sexual, its healing, and its GOOD FOR US!
Its always read discs no problems ever, just wanted to see if I could fix or make that grind sound more smooth sounding, so I sprayed compressed air into the open tray. the damn compressed air can shot a bunch of quickly evaporating foam into my 360.
I hope it didnt hurt my 360 but my disc drive is a running smoother without the grind sound whenever it starts or stops. --- Come to me Son of Jor-el, Kneel Before Zod!