@Niel: At 180km/h it's going to take about 5h. I guess I'll just have to test few spots and see if there are any problems. If, in the meantime, original IMG gets posted I'll replace my own map with it.

@Giomen: My goal is to make GPS device simulate entire route I'm going to drive in real life, to make sure there's no map data that's going to reboot it while I'm driving. Because that's what happened in the past with made up Australian map. I was lucky to detect that while I was till at home, and Niel kindly provided original IMG that solved that problem.

In any case, thanks for suggestions. Lets get back on topic.