I have a MacBook that will be about 2 years old next august and it has not let me down once up until now. I don't know what happened but it suddenly started rejecting every type of disk it is given. Whether it be a CD, a DVD, CD-ROM, blank disk etc. It takes it in, I hear noise that suggests that it is trying to do something, then there's a few moments of Silence and after that it just spits it back out. Any Idea on the reason behind it?