I've just finished a short movie in FCP in 4:3 aspect ratio and have made a DVD SP 4 project for it/ It burned fine and I watched the DVD on my computer to make sure it worked and everything was fine. When I put it in my TV, however, the left and right edges are cut off by an inch or two. I have played other DVD's on the same TV and there is no problem, but the picture of THIS DVD doesn't fit the screen. Any ideas?