I am having a problem building DVD

How do you do,
I have been trying to build my DVD from my digital video recorder by converting mpeg file in my computer to DVD using Adobe Encore DVD software which I had installed so as to come up with a more personal DVD creating experience. However, when I get to the step of “Build DVD”, the below error message occurs. What could have gone wrong?

Adobe Encore DVD
Sorry, an abnormal condition has been detected. Before quitting, you have one chance to safe your project (don’t use the same name as the original).
Thanks a lot.
