<html><body><div class="postmsg" abp="82"><p abp="83">Hallo,<br abp="84">I would like to study structure of data used in various GPS navigations based on OSM. As raw OSM data are not suitable for routing, I suppse, each implementation in GPS navigation needs some changes in the data. I suppose these modified datasets can be called Derivative Database by the definition in <a href="http://opendatacommons.org/licenses/odbl/1.0/" abp="85"><font color="#0066cc">http://opendatacommons.org/licenses/odbl/1.0/</font></a>.</p><p abp="86">If derivative database or processed work is publicly used in some software tool, the license requires providing the derivative database to the recipients also in machine readable form.</p><p abp="87">OSM data are used for example by Be-On-Road. On <a href="http://www.beonroad.com/" abp="88"><font color="#0066cc">http://www.beonroad.com/</font></a> it is posible to download data for various individual countries in files with .bmd extension. I haven't found any specifications of this file format, so It is not possible for me to access and study the data. I can only use them in be-on-road navigation.</p><p abp="89">Are the developers of Be-On-Road fullfilling their ODbl license obligations by providing their data only in files with unknown format?</p><p abp="90">Tanks,</p><p abp="91">Karel<br></p></div></body></html>