If my DVD project is 704x480 for NTSC widescreen format, what should my DVD menu size be when I create it in Photoshop? The help file says "Widescreen NTSC (720x480) 1.2121 873x480" Should I make it that size? When I look at the themes that come with DVD-A, I see files that are 640x480, and 1920x1080 so I'm a little lost here.