most backups
You don't own these all you buy is a licence to use it.All the memory map discs few origonals most backups few years old includes ariel photos 12 map discks set and then a bunch of extra discs including ariel maps, youd need memory map or the wooden leg version. swap for why !!!
. GRANT OF LICENSE
Memory-Map hereby grants to the User a revocable, non-exclusive, non-transferable, license to use one copy of the Software on one computer and one PDA.