Silent_Buddha
Legend
from the ifixit guide:
The drive firmware is married to the motherboard. You basically have to swap the circuit board from the old, married drive to the replacement for them to work.
The 25xx models (and beyond) use drives without logic boards at all. The drive logic was moved to the motherboard, and it's still custom and married to the board firmware. I don't know if a logicless BRD drive is standard in any other device, although I would imagine that most of the parts (spindle, corkscrew, laser rails, ect) are off the shelf parts. The feeder, though, seams fairly "Sony custom" to me, with many exclusive parts that change with every drive revision.
So, you can't use any "off the shelf" drives as replacements on 25xx models? Or does the system somehow bypass the logic board on any "off the shelf" drive?
Regardless of whether you can or can't at least it makes it easier to replace a faulty drive, so Sony can be commended for that.
Regards,
SB