OpenStreetMap

Дзёньнік h4ck3rm1k3

Дасланы h4ck3rm1k3 19 Жнівень 2009 на English. Апошняе абнаўленьне 22 Верасень 2009.

merge many osm filesinto one.
concat them and then merge.
this will also give the ids new ids.

If you want to merge/extract or other mess with OSM files you can also use Osmosis...
osm.wiki/Osmosis

Thanks, I will look at that. I know osmosis is powerful.