As a follow up I managed to get a local shop to look at my DVHRS02 and he diagnosed the DVD drive to be at fault but is unable to track down a replacement.
It's a Loader (BDR-L04P) built by BTC (China).
I have contacted BTC (NL branch) and they say that the drive is OEM and not a retail product!
They suggest that a could use a DRW1004IM but the F/W is different and are not unable to release the correct F/W so I might encounter some problems. Have contacted Bush again and asked if they can advise on how I can find a replacement disk.
I am tempted to just buy a dvd writer off the shelf but will it work?
Reg
April 2006