I don't think I have seen anything out there that has DVI or HDMI for a regular progressive scan. There really is no point. DVI and HDMI are used to get a pure digital connection and carry the best HD signal. Why not just get an upconverter and take advantage of one of the digital cables?
Upscaling DVDs convert 480p to HDTV resolutions of 1080i/720p. EDTV's native resolution is 480p and hence it will convert the DVD signal back to 480p. So, I think spending money on upscaling DVD is a waste. But, still, EDTV's can take advantage of the all digital interfaces. So, my question is:
- Are there any p-scan non-scaling DVD players that have HDMI or DVI output ?
- Do the upscaling DVD players have an option of putting out video at 480p resolution ?

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