Easy to use software with Ordnance Survey maps for PC and Pocket PC - route finding has never been so easy, so accurate and so much fun! Memory-Map OS Explorer 1:25,000 Range; OS Explorer maps now available on CD. Exclusive Aerial Photography also included – see the lay of the land with unique digital photographic maps – fantastic with 3D View. Memory-Map Navigator 2004 OS 1:50,000 Range; Features OS Landranger 1:50,000 maps. Great value product for wide area coverage.