I just bought a brand new black 2.4ghz macbook yesterday. It is my first mac. i have never really used one except in the store but ive never put in a cd instore. well when i insert a cd in my macbook i hear some clunking noises and whirring. is this normal? when i was installing wow it was extremly loud whirring noises until it was done and ejected the disk. right now im ripping music to itunes and some of my cds arent being recognized. i have to eject the disc and put it in again for it to be recognized. should i call apple? i did a hardware test but im not sure what else i can do to see if this really is an issue. thanks in advance for your help!