Ok so I finally signed up here

I have jsut got my 'orrible little hands on a DVR-111D burner to replace my old faithful 109, which I will pass on to a mate.
The 111D is at firmaware 1.19 so I went off to
http://forum.rpc1.org/dl_firmware.php?category=4&manufactor=25and downloaded DVR_FW123EU.exe to update to 1.23.
Problem is I get the output
///ODD Firmware Update Utility Ver 2.35b
Start updating the device No 1.
Current revision>> Pioneer DVD-RW DVR-111d 1.19 06//03/31
Current Signature = General
Hardware Revision is not matched
So I am getting an error and the firmware will not update.
Any ideas on what I am doing wrong here?