I too have been trying to (over)burn 745MB mpg files to branded 80min medea (DiscRite) in my plextor 24/10/40a.
Fireburner needs iso’s and when given one is said (at x12) burn successfull after only burning 1/3 of the file - disc was a coaster.
Nero has been set to DAO and allow overburning, but will not allow a burn to go ahead no matter what I put in the boxes. The help file is strange, the on-screen help is wrong (iso1 / 2 in 5572 both say aloows 31 chars, etc), and somewhere in the help I thought it said nero will only allow 2 mins above the 80 mins - you cannot go above that?
What is the truth. Eventually I had to make an ISO with WinISO and burn that with CDRDAO.
Can nero burn 745MB onto 80min good quality medea - if so, how do you do it. Nero kept spitting out the disc no matter if I inserted it again (changed setting to 86mins). CDRDAO burnt the 745MB file from the WinISO iso or bin/que in the 24/10/40 quite happily.