Last night I was copying a CD into iTunes. I thought that the CD felt a little thicker than average but didn't worry too much. However when I tried to eject it the CD won't come out - the mechanism just makes a few noises and then the computer acts as though I have just inserted it again. I turned the Macbook off to let it cool down but it still did not work and still did not eject this morning. Are suggestions? Are there any easy ways to force the drive to eject the disk or do I need to take it into a store???