Some advice and useful info about using RoadTrip - Garmin software for Mac os X

RoadTrip is a program quite similar to Mapsource for Windows. It allows you to browse maps and its POIs, enables you to enter and edit unlock codes, can handle multiple mapsets you have previously installed etc.

When browsing maps, it is not a bad idea to use limited detail preview (a slider in right-bottom corner). High detail preview may slow down th computer.

If you wish to transfer maps into device, use MapInstall program. It uses pretty much the same logic when selecting various regions of maps and allows you to choose which ones you wish to transfer to device or to USB stick. It uses the same rules as Mapsource: creates a gmapsupp.img in Garmin directory.

Besides that, RoadTrip allows you to import recorded tracks from your device and analyze them in your maps.

Have fun!