hey guys i bought my N1 back in 1996 recently i started travaling alot and my CNDV 40MT disc is scratched and unreadable i downloaded CNDV 80 and 90 when i insernt it it says please insert appropriate disc can someone tell me whats wrong and is there a procedure to upgrade ive bought DVD-R DL and DVD+R DL verbatin burned with alcohol and imgburn 2.4x with verification on still doesnt work someone please help me