Thanks for the map. I have a Question if you may know the answere.
First. Garmin topo has far more detail off road tracks than Oztopo, i ran them both in my 62s.
As far as issue with unlocking and operation..I had NO problems.
Now the only issue, I have a new 3790T Nuvi. when i place the media card in it picks up Oztopo map but cannot see the Garmin topo (yours) YET, both can be seen on the 62s so i know there is nothing wrong with media card or maps.
Lastly, even though the Nuvi can see the Oztopo map and can "tick" it on/off, yet with it ticked I can see no difference on the screeen, if i tick the CN to off this unit cant see any map...Q. i have read the Nuvi 3790t should be able to use these maps, What do you think im doing wrong??? any help would be welcome.