Setting
TV to 480i will not give you a 4:3 output. It always outputs a widescreen image. Since ST:Voyager is in 1.33:1, the
TV will display it with
pillar boxes.
You have to enable the "widescreen mode" on your TV, if you have one. If you don't, you're in the same boat as me. And even if you do have a widescreen mode, be aware that the widescreen mode of your TV will add letterboxing (black bars at the top and bottom) while the
TV will also add pillarboxing (black bars on the left and right).
The only way to get full-screen content would be do to the same thing I'm doing right now: rip with the wrong aspect ratio. As an exemple, I rip 720x320 movies to 720x240. They look vertically compressed when played on the computer, but the anamorphic output from the
TV ends up displaying it at almost the right aspect ratio.
My guess would be to rip your ST:Voyager DVDs to 720x480, it should end up playing full-screen on your TV (although stretched horizontally on your computer).