I have another update!! I used the newly burned iso cd's in a friends avic88 just like mine with a AVH7600dvd head unit just like mine and his will take the program. He had the 50 MT discs just like mine as well, so I can rule that possibility out. So far mine is the only avic 88 that wont take the update. I did however get int a black screen with a message that said it was for technician use only and asking for a password. Any ideas how to get that unit to take the up date. It wont take from original cd's or copied.