I agree that the image itself is anamorphic and that the screen ratio has to be modified. As Oso Blanco indicates, the IFO file ratio has to be changed. I know most of you are on a PC, but if you're on a Mac, an IFO editor for Mac is myDVDedit with the url http://www.mydvdedit.com and a tutorial on how to modify to 16:9 is on this page http://www.mydvdedit.com/viewtutorial.php?t=27e&pg=forum
THANK YOU FANFILTRATION - FANTASTIC WORK!