well i was able to get the nav system to recognize the disc, but there is no map info; it just shows the arrow with no roads. what you need to do is extract the files from the image using a program like WinImage. Then I used UltraISO to create a new image. Unfortunately the trial version doesn't allow you to create images aboe 300MB, but I was able to unlock the program by using one of the registration codes I found in Google Groups. the original image was created using the UDF file system, but UltraISO creates it using CDFS. Make sure to name the volume NAV_DB. now i just need to figure out where the map info needs to be on the disc.

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