@ a011528,
The iso map image is already set to book type mode. If your burner can set mode to book type, every thing is automatic.
The steps I took were:
1. Insert blank dual layer DVD
2. Start IMGburn (using default settings) and click on write image file to disk
3. Locate iso image
4. Burn disk
5. Put fully working copy of map DVD into RNS-E
There are no change of setting anywhere that can burn a DVD ROM if your burner cannot change mode to book type.
If after burning the disk and the rns-e can only see the firmware, not the maps then you have the wrong type of DVD recorder and no extra software or settings change can fix this.