Before going the Pioneer warranty route, I thought I'd ask here if these symptoms sound familar.
I'm using a OEM 109 that has been crossflashed to an A09 (Firmnware 1.57). The drive has worked flawlessly since March, but now it can no longer mount a DVD (neither commercial or DVD-R, nor my Tiger Systerm DVD). Audio disks mount and play (via Mac iTunes) and data disks also mount properly. But I cannot write a data diskâ€”Toast reports either hardware errors or media errors. Using the Finder's burner also fails. I haven't tried burning an audio disk, since I assume I won't be able to.
I was very hot here yesterday (close to 99Â°F), and the drive may have overheated. I burned two data disks successfully before getting errors. I'm not sure if excess hedat could kill the drive, only only the drives DVD capabilities...