Hello

I recently brought a 2010 XC90 from the UK to New Zealand.
This model has the Volvo HDD VNS (Melco) SatNav system.
Have purchased the latest genuine Volvo DVD Map update for 'Pacific Region' (Australia 17.0 and New Zealand 6.0 maps). Part 31337070 AA 1109
Have loaded DVD and followed normal map updating instructions but unfortunately it would seem this is not compatible with the system software. I get an error message asking for Disc 1 and saying this map disc is invalid. It appears to be reading the disc ok as it ran through the 'program update' in progress part and the original UK disc still reads.
The map discs for Pacific are produced by Sensis rather than Navteq. However this is just the maps themselves.
Presumably to run these there needs to be a HDD / systems type of upgrade or settings change done first? Surfing the net sugests this is perhaps what the 'Disc 1' is all about. I dont see these 'systems' discs sold anywhere though in the way the map discs are available
Dealer here is unsure what to do - does anyone have any idea of the potential process to change so we can run Pacific Region maps?

Many thanks