Nero 7 help

I’m not new to burning movies but now when using nero vision 4 just before my movie is done it says unable to create disc structure i cant figure it out please help

are you trying to copy a sony new encrypted dvd? With the new encryption they insert a bunch of dummy files on the dvd and it will make nero act funny.

I assume your movie is on HD. Did you do any editing?
Are you burning to DVD5 or DVD9? Nero 7 has lots of bugs. Did you try to use Nero Recode instead of vision?