First of all i dont think you should use dj3x use version 2.0 and to burn a game that is bigger thatn you expected and when the NFO says it should be on a 80 mins, i think i heard somewhere that you should turn on the overbun option in DJ and then it shouldent be a problem. Iam not sure at all i havent tried this my self... Well i hope it was worth something....

Take care

Dearest regards
Mantus