On my Sony 10x .... when burning I could hear like a squeaky, whine.....When the Yamaha is burning, I hear nothing. Ripping or reading is another story. I had to close my office door for fear it would wake the kids last night. Make sure you use all 4 screws to mount this baby in your case or the rattle will wake the dead. Anyone tried 'on the fly' copy? My Sony could do it pretty good. Just wondering if this will do just as well