Ugh, so I've been searching online for days now and not getting anywhere. I just bought a new Toshiba Satellite L670, Win 7 - 64 Bit like maybe 7 months ago and the past few weeks my DVD/CD drive has been intermittently not showing up. Now, it just will not be recognized at all. Won't recognize blank CD-Rs, etc. I can't seem to come to any type of concrete solution to this. Anyone have any advice?