Sorry, I wasn't very clear in my question I want to build the *entire* mapset - which is too many tiles. However I know the .IMG file shipping with the T versions of (for instance) the Colorado 400 series include the maps - and do so by using larger tiles. Thus, I'm really looking for an .IMG of this mapset which came from a Colorado 400T or Oregon xxxT or similar unit. I wish Garmin would just offer their customers this choice - I actually have *2* full factory DVDs and licenses for this dataset and am kinda annoyed that I can't load the whole thing due to the small tile size. (Full mapset is under 4GB, but # tiles is 6600-something.)

Thanks!