garmin has a new format for their mac maps
it's .gmap
how can i convert/edit this beast?
I posted some information about Windows vs Mac map formats in this thread: http://forums.gpsfiledepot.com/index.php/topic,1839.msg11019.html#msg11019
Converting or editing Garmin's map products would be a violation of the software license, and discussion of such topics is generally forbidden on this site.