I attempted to create a map of the Geofabrik extract of Europe using the --index option. (I know this may be somewhat premature, since the MDR code is still in progress.) - This map consists of 274 tiles. When I tried this, mkgmap halted with an IndexOutOfBoundsException. - The exception occurred at line 356 of LBLFileReader.java in method readPoiInfo(). This is the code that caused the exception: if (placeHeader.getNumCities() > 0xFF) cityIndex = reader.getChar(); else cityIndex = reader.get() & 0xff; poi.setCity(cities.get(cityIndex-1)); To see if I could compile the map anyway, I added try and catch statements around "poi.setCity(cities.get(cityIndex-1));", and printed the exception. I received a lot of error messages like the following: java.lang.IndexOutOfBoundsException: Index: 17906, Size: 258 java.lang.IndexOutOfBoundsException: Index: 3413, Size: 258 java.lang.IndexOutOfBoundsException: Index: 13957, Size: 258 Although the map then compiled, it still crashed Mapsource. Oh well. Any idea what is going on here? Is it too ambitious to try to create such a large map with > 256 tiles at this point? Cheers.