I got a genuine 3.2.3 one from ebay for under £20. There are plenty on there for sale.
Just make sure you get the right version number as I think you would have to stay with a v2, but I could be wrong.
A quick bit of googling will clarify it for you.
I think it's V2.?? we need. There is this but I doubt it's the real thing - http://www.satnav-update.com/201112-honda-v211-sat-nav-map-update-disc-123-p.asp
I got a v2.11 disc from ebay, £12. Great job, although there are times that it just wont load, esp when the car is switched off after driving for a few hours then fired up again. Sometimes takes ages for the "OK" button to come on, other times it says "Disc is reading a fault". However, works 99% of time.
I got a genuine 3.2.3 one from ebay for under £20. There are plenty on there for sale.
Just make sure you get the right version number as I think you would have to stay with a v2, but I could be wrong.
A quick bit of googling will clarify it for you.