Nero DVD overburn problem

[Traveler]

I am using Nero v6.6.0.1 and Optorite DD1205.
I overburn (4500mb) a "sonic cd-r" without any problem. But it's having difficulty when burning "matrix cd+r".
By the end of completion, the program just halts. I cannot eject the dvd, or close the program even when I try to force it close in task manager.
And then everything seems going weird/slow/very slow (like opening a program or something). I have to hit the reset button to restart it, and eject the dvd before it enters windows, otherwise it's slowing down again.

By the way, I contacted Optorite and got response that the cd+r I use is in their compatibility list.

Does anyone know why?

[johns0]

Dont overburn,i think you mean dvd-r and dvd+r,most likely the matrix cant be overburned.

[babyboo]

I believe that the majority of folks limit their burns to around 4 gigs due to potential playback problems brought on by either edge damage of disc or dye. There is no point in getting some extra MB at the expense of having playback problems. That is just my opinion though.