The difference between upscaled DVD and Blu Ray/HD-DVD are as different as night and day on any HD capable screen 32 inches and above. The HD formats offer levels of detail not possible with DVD. Sure an upscaled DVD may look sharp but even at a distance the difference in the details (crowd scenes in which individual faces are recognizable and cityscapes where it is easy to tell that part of the background is a matt painting) is easy to spot.
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The difference between upscaled DVD and Blu Ray/HD-DVD are as different as night and day on any HD capable screen 32 inches and above. The HD formats offer levels of detail not possible with DVD. Sure an upscaled DVD may look sharp but even at a distance the difference in the details (crowd scenes in which individual faces are recognizable and cityscapes where it is easy to tell that part of the background is a matt painting) is easy to spot.