Reboot?
ZAP PRAM (Apple + Option + P + R at the first startup chime)
That covers it for right now, try those and see what happens.
I recently had to replace a Slot Loading DVD player in one of these, it too, just died on me.
Fortunately, the replacement, purchased on eBay was quite cheap. They are easily within the scope of anyone with a little dexterity with a Phillips screwdriver, to install
P
I was watching a DVD last night and everything was working perfectly. I then ejected the DVD, put in the next disc (I was watching Lost---yes, it's rather good) and suddenly my Mac wouldn't read the CD. Or any other CD. Or even the cleaner CD I bought. Any idea of how to fix this? It literally stopped working in the span of 10 minutes. Thanks.

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