I don't know anything of "Dynamat", but when I read the part about removing critical motors from floppy/cd-rom drives I finally go it! This is a joke as far as I'm concerned, and anyone that follows these directions are bound to have not only a silent PC, but an inoperative PC as well. Better to just turn the darned thing off...much easier and doesn't require obtaining this "Dynamat" material! Hehehehehehehehehhehee!