I'm 0/2 on my nav DVDs so far. First one would be recognized by the nav system, but there was corruption somewhere in the data (no addresses, street names, etc). The second one would not even be recognized by the DVD reader, even though i burned at 1x.

When I copy the modified DB back to the ISO file, is there anything inherently wrong with deleting the old DB folder in the ISO and substituting the POIson-modified one? I'm using ISOMaster if it matters....