This is probably the easiest of Nero's tips so far, and probably the easiest one for futures, too.   However, it's an important one, because it's a question lots of folks seem to have:  

How do I convert my movies from PAL to NTSC and vice-versa?

Easy as pie.   First, open up Nero Vision.   Next, click on the "More " button:

From here, simply click on "Default Video Options " in the menu that pops up, simply use the pulldown menu to choose the country you're interested in converting to, and go burn!  

That's it.   You can do this anytime before the burn process starts, even after you've already edited your video.