Does anyone know the specification for the 80GB hard drive in the Panasonic DMR-E85H DVD/Hard Disk Recorder? Should it ever fail in the future and I need to replace it, I would like to know the spindle speed RPM. I suspect it is 5400rpm. Can anyone confirm this? From reading various message boards it seems important not to replace it with a higher spec drive which could cause problems with the amount of power required to drive it. I've emailed Panasonic UK but received a snooty reply saying that they won't tell me!