Shoot .. sometimes I get off on a tangent and loose track of everything. Sorry .. I MEANT to mention this in my long winded ramblings.
I have several programs (like DVD authoring) that will do a direct burn from within the program to a CDR or DVD etc. I've found that almost ALL of the programs that do their own independant burning are not set up to do over-burning. They can be locked in to a set maximum.
I find that most programs like that have the ability to also burn an image or in the case of a DVD a title set.
Then you can use Nero with it's over-burning capability to burn that image or title set. Sorry if I rambled .. I'm old and I tend to wander. Uh ... now what the heck was I talking about ???