I'm looking on 2 different dvd's and neither of them have a cdrom.toc file. One dvd is the oem 2002-1 Navteq dvd and the other is the one I am trying to get version info on. Both dvd's work, but again, neither have a cdrom.toc file. Probably because cdrom.toc only exists on a CD and these are DVD's. What can I do now?