Thanks for the advice.
To be honest with you, I don't understand why the questions I am asking are not better explained / answered in the help section of "DVD Fab Platinum".
The way I understand things is that if a software application has "x" number of features, then the help section should explain under what circumstances the user should enable or disable these "x" features.
Any chance of updating the "help" section in DVD Fab Platinum consistent with my comments above ???
Thanks again to all of you for your assistance.