[qanda]This question is published in the hardware section for the Optiarc AD-7201S. Click here to view full specs.[/qanda]When I switch on my system or load a disc in my AD-7201S, I hear this "weird sound" that I wasn't used to with my previous drive. It's hard to describe, it's not really like some parts are physically touching/scratching each other, but it doesn't sound like a regular electronic part either. Is it my drive or do all drives from this series make a similar sound?