mcgu1nness

Hi all, first post here. I've just picked up my new 350z this week and while trying to set up the sat nav system I've encountered some problems. I've inserted the Birdview disk which came with the car, it seems to go through an installation process on the screen before finishing and saying "Replace a disc." Am I missing another disk as part of the process? If so where can I find one? Cheers.