I decided finnaly to buy a european version of 671, despite the fact that is almost double priced than in US, however, as I'm living in Belgium I didnt want to deal with stepdownconverters.
So I ordered it a couple of days ago and I'm keen to get it and play with it! It seems mine will be delivered out of Holland, so I'm losing options like rhapsody, napster etc.
I'm wondering if it will work to upgrade the firmware with the US version which can be downloaded from the yamaha support web page. Did somebody try? What's the potential risk for performing the flash?