I'm overwhelmed by all the available maps here and don't know where to start. I do understand about matching your navcore version to the respective map version, etc.
What is the difference between installing an individual country map (for example, France) and the France map from/inside of the Western Europe map? Is one more detailed? What if you install both?
What if you install maps that overlap each other? For example, you install the Western Europe map. Then you decided you want the Central Europe map or the Eastern Europe map too. Some borderline countries in Western Europe, are also included in Central Europe map too. Does it matter? Will there be any conflict between the country maps?
You can install as many maps (in different folders) as your TT or SD or mSD can take. Individual country maps are the same as the ones in greater regions. (France map is the same as in Europe or Western Europe)