The file on the European site is for an upgraded/fixed Euro Z3 (I forget the model number) and it does not require the extra files for updating the gracenote database. The native Z3 models require a different method of update and it was fixed with a Z3 update. I have tired adding those files to it, adding the DB files to an older update, etc. and it still says "Failure to verify version information". Just gonna have to wait until pioneer provides the US pre-Z3 updates.
Don't think so....
That's what I have (European HD1 upgraded to HD3-II, and additionally even updated with the Gracenote fix, but it does not "see" the gracenote disc with the June '09 version....
It worked fine with the older Gracenote updates in the past, both the US and european versions (there's no difference,)....
Like I said, it's just missing the inf file.....