jeferbla

I had the same trouble some months ago.

I was desperated with my dumb lady...

Until I test a little trik. Why not re-start the system?

I got out the DVD disk map from the box and tested it was not in the display (No DVD message).

After that I insert the DVD newly in the box and reinit (a simple re-start) the system.

The dumb lady was there!!

Try to do all of that... and good luck!

Is it possible to take the DVD out of my sat nav unit and make a back up copy in case anything happens to the original.

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With a DVD - DL read-write unit, Alcohol 120% last version and a DVD+R DL 8.5GB recordable... no problem!

I just backuped my navigation DVD and works fine. The original is a black one, made by AISIN AW and NaviTech and was in a RX-300.

Good luck.