Originally Posted by marvfox
I checked out my computer today and the Apple Reseller said this was not normal making this noise. I left it there for further consultation.
Too bad. It is. That's how all Macs start up. They check for a disc in the ODD first, then they boot to the HDD. He didn't lie, he was just completely wrong.
On SOME newer models, you can stop it from doing that. Not reliably, but sometimes.