well sir. with out research i could not tell you. but i could tell you what i do know. i bought a d3 from ebay with nothing but the unit.
i then had to buy the wirring harness but no rca harness. also no gps antenna so i was working with not alot. so when i got everything hooked up i got that same message. please insert the appropriate disk.
well i knew that i did not have anything in the drive. so that ment that i need to put something in it. so i put in a cd and nothing happend so i push the volume knob. and bingo it went the the av menu. but i still could not go into the nav menu with out it stating what i saw when i first fired it up.
so i hit the volume knob another time. and setup everything the way i wanted it.
well then i needed the nav disk well i did not know what would happen after i got the 2007 west disk down loaded and burnt and put in.
well it loaded after i put the disk in and then turn the car off and back on with the disk in and it updated the d3 and i could go into the nav menu and change everthing else that i wanted like the time and date.
so i am not sure what the deal is. other then the firmware on the d3 is messing up some how and the drive has been bumped and shifted the lins in it. but i have found that replacing the drive in the d3 is high in price to do. the drive its self is like almost 300 dollars. so what you might do is put a disk cleaner dvd in the drive and see if that helps cleaning the lins.
now after all that said does it read any kind of disk or just stops at that screen and you can't get past that with the nav disk in it.
still you might try removing the d3 and then take some caned air and try to clean up the out side of it and blow out any dust. or it could be the disk being warped. and its not reading any more.
so i hope that something that i have said works for you.