Hi Gerd, I was looking at wrong places. Actually there is a copyright line from mp header. After patching, option "copyright-file" overrides mp header. Without "copyright-file" reappears value from mp. I'm not sure, maybe there should be both copyrights present? Dropping a copyright doesn't look proper. When copyright from mp header is used, is preceded by a line: "PROGRAM LICENCED UNDER GPL V2". I guess it is about mkgamp, wouldn't be better to put explicit "PROGRAM MKGMAP..." there? Just to make sure, it wasn't Mapwel or MapTk ;) One more question. Does mkgmap correct problems with routing network in mp? I mean problems like distance between routing nodes too short, road intersects with itself or something like adjusting turn headings. -- Best regards, Andrzej