I just converted to Mac, so please bear with my newbie-ness. I have been ripping all my CD's to iTunes until yesterday when my Mac decided to not recognize CD's (even previously ripped ones) or even (as a test) DVD's. No icon, a little buzzing, but no recognition at all. What happened? I got a Mac because I hate having computer problems! Does anyone have any ideas of what is wrong or how to fix it?