Hi Spildit, thanks for the reply.
To answer your questions.
The drive is a WD Cav Green 2TB and WD-Marvel reported it was a ROYL (when it was properly detecting the model, LBA and serial etc)
Drive is connected direct via sata. with standard power - applied at boot.
Yeah, the drive is pretty much full with data which i needed. I know... i should have backed up the data. unfortunately this is one of those series of unfortunate event situations
i actually had a replacment Hitachi 4TB ready to and backup all the data but it turned up DOA so had to go back. i thought as the demo didn't perform write operations and because i had "safe mode" checked i was relatively safe.... bad times.
WDMarvel no longer detects the drive ufortunately, the only programs i have tried which manage to detect something albeit with no model, serial or LBA info is HDAT2 and MHDD via DOS. i do have some logs from HDAT2 which i saved - which i could provide.
When your reffering to the Rom, this is the same as the 8-pin winbond rom chip or is this an internal rom on the MCU? only ask because i did manage to read the rom with WDMarvel before the above issues occured and i could just desolder and re-program the 8-pin chip if neccesary if you think that would resolve it?