I downloaded .a mapset (michigan-latest.osm.pbf) from http://download.geofabrik.de/north-america.html yesterday. The data is about 20 hours old. I had to use SPLITTER r428 with this command: java -Xmx1024m -Xms1024m -ea -jar \MKGMAP\splitter-r428\splitter.jar --max-nodes=1400000 --mapid="12390000" --geonames-file=\MKGMAP\cities15000.zip --description=MI-greg --max-areas="255" --no-trim --status-freq="600" michigan-latest.osm.pbf Since I could not load the entire Michigan 96MB file into JOSM r9329. The resulting file, 12390006.osm.pbf, is 10.8MB and I imported it into JOSM and copied a NODES tags to an underlying POLYGON and deleted the NODE and tried to upload to the OSM server and got this error message: "Uploading failed because the server has a newer version of one of your nodes, ways, or relations. Click Synchronize entire dataset to synchronize the entire local dataset with the server" It is possible that SPLITTER r428 is not preserving the dataset versions or is setting them all to 1 when they really have different versions (eg. 2,3,4) Greg