Hi Gerd, splitter r306 crashes, while r304 does the same task correctly. See log: Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 552 at uk.me.parabola.splitter.SplitProcessor.addToWorkingQueue(SplitProcessor.java:364) at uk.me.parabola.splitter.SplitProcessor.writeRelation(SplitProcessor.java:355) at uk.me.parabola.splitter.SplitProcessor.processRelation(SplitProcessor.java:208) at uk.me.parabola.splitter.BinaryMapParser.parseRelations(BinaryMapParser.java:204) at crosby.binary.BinaryParser.parse(BinaryParser.java:122) at crosby.binary.BinaryParser.handleBlock(BinaryParser.java:68) at crosby.binary.file.FileBlock.process(FileBlock.java:135) at crosby.binary.file.BlockInputStream.process(BlockInputStream.java:34) at uk.me.parabola.splitter.Main.processMap(Main.java:828) at uk.me.parabola.splitter.Main.writeAreas(Main.java:780) at uk.me.parabola.splitter.Main.split(Main.java:284) at uk.me.parabola.splitter.Main.start(Main.java:165) at uk.me.parabola.splitter.Main.main(Main.java:149) -- Best regards, Andrzej