Sorry for the quick post some minutes ago. I had to leave for work and was in a hurry. The downloaded OSM data seams big enough to contain the region I asked for with all ways and stuff. mkgmap doesn't display any error messages regarding the files size. I compiled a map about 70% of this size some days ago (with the snapshot version), which came out as just one file after usage of splitter. So I though this map wouldn't need to be chopped in pieces either. Maybe I was wrong? As posted before, if I try to use splitter on the osm file now, it produces an error. I'm running this on a Mac (privious test were on a Win-PC), but that should make any differences, right? I can upload the .osm file to anyone who likes to test it. Even if it is corrupt, maybe someone can find a way to detect this and make mkgmap output a meaningfull error message? (please allow 8-9h until I return from work) If you say my command lines were right, I don't know what else to do other then to download the OSM data again. ----- Ende der weitergeleiteten Nachricht -----