I have a black macbook and i recently bought a few cds (2 Metric CDs and a nada surf cd) and so naturally the first thing I did was put them in my computer to rip/listen to them as I don't have a CD player other than this (it's college where multi-function rules supreme). Well, the Metric cds worked just fine and I'm listening to the ripped tracks right now, but when I put in the nada surf cd, i get this horrible lower pitched sound and some grinding it sounds like and then the thing spits the CD back out, it looks undamaged, doesn't have any scratches, but it doesn't sound like it's mounting or anything. I put back other CDS in to make sure the drive worked fine and it does, so what's the deal??