Satellite Navigation

[LesW]

Can the Garmin do that? Can Mapsource send to the 780?

It works fine on my 760, so can see no reason for it not to work on a 780.

You will have to switch the storage to 'Mass Storage Mode' within the settings on the 780.

 

[Figaro]

I'm sure it will be fine but for mapsource I think you need a windows pc which I don't have now so didn't really look into it.
I use a Chromebook now.