I've got a friend that rides 2-wheelers that is looking for some guidance on manipulating GPS track data. He asked if anyone in HDC has skills with doing this kind of stuff. I told him I would ask. Below is specifically what he is trying to learn how to do: Know anyone in your FJ club that is REALLY good at converting GPS tracks to an image (img) file that can be uploaded to a GPS receiver? I have a Garmin Mapsource output file in .gdb (or *.mp) format, containing the stored tracks. I don't need background pictures from Google Maps, topos or other, to be included. I seek to make an image file (.img) that is directly loadable to my Garmin GPS V rec'r. Am using GPSmapedit for *.gdb manipulation, and cGPSmapper for uploading. Am stuck in how to edit layers in GPSmapedit.