Hi, I started to play with maps with DEM, but run into a problem: viewfinderpanoramas.org provides hgt files, but only for some areas. The SRTM1v3.0 data is using geotiff. No problem, you can convert them with gdal_translate and fill the missing areas. Works fine for below N50, but starting with N50, the data is much smaller and this leads to the following error: SEVERE (HGTReader): 71200154.osm.pbf: file /data/OSM/data/hgt/N50E012.hgt has unexpected size 12970802 and is ignored SEVERE (HGTReader): 71200154.osm.pbf: file /data/OSM/data/hgt/N50E013.hgt has unexpected size 12970802 and is ignored SEVERE (HGTReader): 71200159.osm.pbf: file /data/OSM/data/hgt/N50E014.hgt has unexpected size 12970802 and is ignored Any ideas how to solve the problem? Thorsten -- Thorsten Kukuk, Distinguished Engineer, Senior Architect SLES & MicroOS SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nuernberg, Germany GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nuernberg)