On my workbench, I have a Toshiba Satellite A305-S6905 with a dead HDD, which I replaced. I also have the original Restore DVD for Vista SP1 32-bit labeled as for A300 series laptops. Upon booting from the CD and selecting the toshiba reovery wizard, it throws the error "This model is not supported" with the error code 03-FFFF-0000. I called Toshiba tech support and they said the disc is probably just defective and I'd need to order a new one for $30 plus shipping. The disc is fine, and from what I read, the error code has nothing to do with a defective disc. However, the owner of the laptop indicated that the motherboard had been replaced at some point. Some forum posts I stumbled across say it needs to be returned to an authorized toshiba technician. But, that has me wondering--how was the O/S installed in the first place after the motherboard replacement? Has anyone encountered something like this before?