With topographical data provided by Ordnance Survey of Great Britain and road maps provided by NAVTEQ, you can count on exceptional detail. This DVD even includes businesses and points of interest.Unit compatability, this mapping software will work in conjunction with any previous mapping enabled Garmin unit, Legend monochrome, Vista monochrome, Legend C, Vista C, GPS 60C, GPS 60CS, Legend Cx, Vista Cx, GPS 60 Cx, GPS 60 CSx, Quest, 76 Series, 96/96C, GPS MAP 276C, 376C, GPS 18 Auto bundle, cfQue 1620, GPS 10 and Nuvi.Your map transferral will be limited to the internal memory size of the unit (unless using new X Series expandable memory units).On Monochrome units resolution will be less than colour units. Extended resolution available in the GPS 60 Cx & CSx (units this will not be compatible with are GPS 100 Series & panel mount aviation units).It is however reccomended that this is used with a unit that has a capability of 20 MB or higher or the new X Series.FEATURESWith this purchase you will have access to the entire DVD coveragePoints of interest include food and drink, lodging, recreation, petrol stations, hospitals and moreAutomatically creates point-to-point routes on roads in MapSource and on your compatible GPSVertical profiling with DEM shadingDetailed contoursTrig pointsGeographic pointsTracks and paths includedProduct includes link to MotionBased.com, where you can upload data and get in-depth analysis of your activities, view tracks on a variety of online maps and share routes with others.