This format can...
read and write waypoints
read and write tracks
read and write routes
The Lowrance iFinder GPS series has the unique capability to output its data to an MMC card. The data is saved to the card as a .USR file and can be read by your computer using a card reader. Waypoints, icons, routes, tracks are supported. Event marker icons contain a symbol, name, latitude and longitude only. By default, Event marker icons are converted to waypoints on read. On write, you are able to create icons from waypoints.
Ignore event marker icons on read.
This option instructs GPSBabel to not convert icons to waypoints on input, but to instead disregard them altogether
Treat waypoints as icons on write.
(USR output) This option converts the waypoint information to an event marker icon.
(USR output) Merge into one segmented track.
(USR output) This option merges all tracks into a single track with multiple segments.