Further to my post in March, I had a drive fitted by a local dealer as we negotiated a reasonable price and he let me keep the upgrade CD
However, he told me that Yamaha UK cite issues with Seagate Barracuda 7200.10 drives and he recommended I installed a Western Digital or Hitachi instead. In the past I have had lots of problems with Hitachi drives, so I had a WD installed. Its only 320Gb but should do for the time being.
I am now looking for fw update 4.1 or above. Yamaha UK will not supply update to end users, only to dealers, and I don't want to take the unit back again. It seems the US site will supply the disc, but to US residents only. I understand the files are only about 6mb, does anyone know where there is an active link or have the update which they could email to me? I have found a version to download on the yamaha japan site, but it is old.