Continuing my put-those-bits-out-of-your-hard-drive campaign, I’ve released a patched version of GPSBabel with support for input and output of waypoints, tracks and routes in the binary file format of GPS TrackMaker.
The patch was written six months ago (sorry :-) ). I just had to port it over to a recent version of GPSBabel.
The original reason for the patch is that there is quite a good amount of information under that format for Brazil, and GPSBabel is able to deliver information directly to some brands of GPS devices. Hopefully this will get applied upstream soon.