I am worjking on the Star Wars GOUT Trilogy,I am going to strip some of the unwanted stuff on the retail DVD and replace with wanted stuff,how would I go about doing this,a simple how to on something simple would be great,because when I do it once,all should be good to go from then.

Here is an example of what I am looking to do,
OK if I add the DD 5.1 track I need to strip some of this stuff,first I need to remove the "Special Features" button from the main menu:

Then I need to remove the French and Spanish audi options form this menu and replace with DD 5.1 option,but I would have to get that font or one very close to it:

maybe I might take off the THX optimizer to.

So any pointers and guides on how to do this would be great.