[mkgmap-dev] About PBF format

Hello, I meet an error with PBF files produced by splitter and used with mkgmap : "Error at line 1, col 1 Bad file format... it occurs with Ireland.osm.pbf from geofabrik.de. (mkgmap v2172 & splitter v200) Is there a way to convert PBF file produced by splitter into OSM format (or how can I used PBF files produced by splitter with mkgmap) ? Should I add an option in command line ? Please help ! David