Originally Posted by 98CoupeV6

Damn guys, don't give bad advice to people...I think he's just talking about rusting. If it's not where I think it is then it's obviously defective, but I think it's normal.

It's completely normal for a rotor to chip on the side or inbetween the two pieces of solid steel. This is caused by road salt and water...since it's not stainless steel or any sort of protected alloy, it WILL rust and chip off. If you spray your rotors with water and let them sit for a week you'd notice that they'd be rusty as all hell. That's what happens to the outer circumference of the rotor, except that it has no pad to wipe away moisture and prevent rusting.

My rotors have been on for 50k miles/2 winters and they look like hell between the solid discs...ridiculously rusted and chipped away, but as long as it's not on the disc surface it doesn't matter a bit.