Is it possible to make a DVD with non-standard sized movies, w/o scaling?

Question

I have some software tutorial material that I want to turn into a DVD. Since the video was created as a screen capture of a particular piece of software, the finished video is an odd size of 830 x 622 (I wanted to capture the screen dumps at their actual resolution, which looks crystal clear - and that was the size of the software's main window.) Note that this is still 4:3.
I edited the material in FCP 5, made a custom sequence setting of 830 x 622, and the exported final results are QT movies with a size of 830 x 622. We then flash-encoded these for web-broadcast at a size of 640x480.
What I am wondering is: now that we want to make a DVD, can a DVD be made that keeps this video at the larger size, so that it is crystal clear? So far, I experimented with using a few of the DVD format encoding options in Compressor, and it seems to end up as 640x480 no matter what I do.

Answer 1

I think you might be mistaken about the 720x480. When I make a new sequence in FCP, it calls 720x480 3:2, not 4:3. If I set it 4:3 (which is one of the two allowed DVD standards), it becomes 640x480.
Indeed, I have been trying various export experiments from Final Cut with Compressor using presets such as "DBD Best Quality 120 minutes - 4:3", and they all come out as 640 x 480. Furthermore, I can import them into DVD Studio 4 and they seem to work normally for now.
So, dragging my 830x622 QT movies directly into compressor and applying the above preset results in very good-looking, 640x480 MPEG-2 video. I had hoped there was some way to keep the higher-resolution of 830x622, but apparently DVD only supports a few standard pixel dimensions (4:3 at 640x480, 16:9...)