<para>
  Support for the "Garmin GPS Database" format used by
  default in <productname>MapSource</productname> versions since release 6.0 of
  that product. By default GPSBabel creates
  gdb files of version 2.  Version 2 is used in Mapsource 6.3 and 6.5.   This format
  is also used by <productname>Garmin BaseCamp</productname> for Mac and Windows.
</para>
<para>
  Garmin GPS database is an undocumented file format. The
  basic info for this module came from the existing MapSource
  conversion code.
</para>

