Garmin Nuvi Internal Map Naming

1. PROM1 = gmapprom.img

2. PROM2 = gmapprom1.img
3. Suppmap1 = gmapsupp.img (nuvi drive only)
4. Suppmap = gmapsupp.img (SD Card drive only)
5. Dir DB = gmapoem.img (OEM POI data map)
6. Basemap = gmapbmap.img
7. TZMap = gmaptz.img
8. 3DMap 1 = gmap3d.img
9. 3DMap 2 = gmap3d1.img