Some devices may upscale incorrectly, but not all of them. The most noticeable is when you try to feed 480 to the TV is when you may get some overscan because of the DVDs PAR and how the player handles it. But if you have a decent 1080P upconvert, and a decent TV with options, then you should be able to get 1:1 without any overscan, especially the amount described by some in here
They should be viewed in Wide/16:9 mode even on a set with a 1:1 mode, or a small error in aspect ratio will result.
I think you are getting non anamorphic dvd output confused with anamorphic dvd output. Yes, non anamorphic DVDs are tougher to make display properly correctly on some HDTVs.....but this isnt going to be the case with these encodes, obviously
Needlessly resizing the video horizontally will lower quality. The script could easily be adjusted to remove the horizontal resizing.
If you dont want to resize it to the full area afforded by the anamorphic enhancement.....you want him to take out the resize all together and just make a separate non anamorphic for you? cmon now its call working with what you got