Free map images can be downloaded from these sites.
Note: For unregistered users: You will need to use the Trial version to use these maps, the unregistered Shareware Demo version cannot be used with these images. (The Trial version is included in the OziExplorer Software download.) These maps will require calibrating within OziExplorer using the Load and Calibrate option. (This is described in the Tutorial which can be accessed from the OziExplorer Help Menu).
Mapping data and geographic information from Ordnance Survey
Order O.S. OpenData on hard media or download direct to your PC, Mac or laptop.
The Dutch government provide an open map source with total
coverage of the Netherlands, with free 1:25.000 maps.
https://www.pdok.nl/nl/producten/pdok-downloads/basisregistratie-topografie/topraster/topraster-actueel/top25raster
Free maps and listing of other maps available.
Free Maps of Cyprus, Papos, Limassol, Larnaca - http://www.cyprusgpsmap.com
Mapstor www.mapstor.com - Maps for most countries.
The GeoTiff Project - The GeoTiff Map Project compiles georeferenced satellite imagery and street data for use with GPS navigation software and location-aware systems.
Great Britain Maps - Great Britain maps in OziExplorer format for use in OziExplorer programs.
GPSWildMap - Some regions of Europe.
Imray Charts - Europe, Mediterranean and Atlantic Islands
Institut Cartografic De Catalunya