This is the AnyDVD Forum. CD Freaks has a NEC DVD Forum and that is the appropriate Forum where NEC/Mad Dog firmware topic are discussed. In posting #2 in this thread I provided that information to you.
Once again I suggest that you open a new posting at the NEC DVD Burner Forum (http://club.cdfreaks.com/forumdisplay.php?f=86) and asking for assistance in acquiring the best firmware for your Mad Dog 16 X DVD9-External DVD Burner. There are numerous extremely knowledgeable Forum Members like Liggy, Dee-27, Herrie and others in the NEC DVD Burner Forum that can provide detailed information on the appropriate firmware that will meet you needs.