I just downloaded and burned the disc. It didn't initially work on my AVIC-9DVD either, however, I went into Test Mode and discovered the reason why. The Application Program for my AVIC-9DVD is missing from the disc (EU010APT.PRG file). The AVIC-9DVD has a cool feature in that it can read missing files from the PC Card slot, so I copied the missing PRG, the matching HTM file (probably not necessary), and DVI.DAT to the PC Card and now the DVD will boot up.
The PRG file is definitely missing for the AVIC-D1/D2 also, and I suspect it won't work on AVIC-N1, N2, and N3 either.
The only PRG that's present is EU070APL.PRG. As far as I know, here is a list of PRG files and which device uses it:
EU010APT.PRG - AVIC-9DVD, 8DVD, 80DVD, 88DVD.
EU040APL.PRG - AVIC-N1, N2, N3??? This one I'm not too sure about.
EU050APL.PRG - AVIC-D1, D2
EU070APL.PRG - AVIC D3, N4, N5
In theory, you should be able to copy the appropriate PRG and DVI.DAT from whatever disc you got the PRG file to the disc and it should boot and work. DVI.DAT contains info on the disc and program versions. You must use the DVI.DAT from your old disc because the DVI.DAT on the new disc won't work. I would also copy the matching EU0x0APL.HTM file just in case... the boot process may do file checking, who knows. You definitely won't see any program updates this way, but at least the map will be newer. In fact, on mine it didn't even change the boot screen.