NAV problem
 

My daughter's idiot boyfriend was messing around with the navigation on her 06 SRX and somehow dumped the firmware. Tried both the original v.7 West map disk, and the copy I made, but they just get ejected and a message is displayed that says "Caution: Cannot load system software. Disk type incorrect. Please insert correct system disk." Display stays in down position, no radio, no anything. Am I missing something here? Is there something simple to fix?...Or is this going to be the usual I need more money than I have thing?