Garmin BlueChart g2 Vision would normally be either gmapprom.img and/or gmapsupp.img files. Garmin HomePort can also read both of those names for g2 Vision charts if you have the maps connected to a PC with a memory card reader.
If you already have another gmapsupp.img I would rather rename that other map to gmapsup2.img instead.
Garmin Homeport is the best choice to view g2 and g2 Vision charts on a PC. If you don't have a marine GPS unit you will get distorted colors (water areas is blue instead of white) when looking at a g2 or g2 Vision map.
Hope this gives some useful information.
/ Ballebar
Bookmarks