This format can...
read and write tracks
This format is derived from the xcsv format, so it has all of the same options as that format.
This is the format for the Ricoh 500SE GPS logging camera.
This camera creates log files on the SD card in a folder name "GPSLOG" that are named "YYMMDDNN.LOG" wher NN increments from 00 through 99. The camera appends new tracks into the current file, hence the "new track" field. When the current file reaches about 500K, NN increments and logging continues into the next file. Therefore, there may be multiple tracks in each log file, and tracks may span one or more files.
GPSBabel will recognize the "new track" field and will generate a new track, so if you specify multiple files in the correct order, your tracks will be automatically split sensibly.
For additional tips, see the OpenStreetMap page on Ricoh 500SE.