David, there is certainly no limitation on playing around with OSM-derived maps as these are CC-BY-SA 2.0. However it seems cumbersome to me to decompile such a map when you can instead download and inspect the source code of mkgmap, the utility we use to create them (see mkgmap.org). You should be able to learn much more from that than from just decompiling the IMG file!
Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" _______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk