Thank you for all the info!
HONDA CRV navteq 2.04?
Successful copy/burn with dvd decrypter with LG "GSA H10N" @ 1x speed on verbatim DL dvd+r changed booktype to dvd-r with ISO file, was sure it wasn't going to work when i inserted it after waiting 3 mins (tried 4 burns without waiting longer)

in the car but *smile* worked after 6 minutes trying to read disc, later tries take about 40 seconds to read disk

IMPORTANT TO BE PATIENT TILL YOU GET ERROR OR SUCCES MSG ON NAV UNIT!
