I Think this is nog working. Because yesterday I uploaded multiple maps for the first time with mapsource and when the mapsupp file is on the SD, mapsource gives an error that this file would be dammaged. Thats why I copy / paste the folder. Mapsource can not upload new information I think when I give the folder with the maps ( citynav) another name? Thats why I want te rename the bluechart mapsupp folder. What do you think???