for greater storage capacity. Means further decompression of video while maintaining lossless audio. Not that I care that much, but then also more space for extras, trailers, bonuses, etc. Perhaps better potential to carry Deep color at 12 bits as well in the future.
HD-DVD is the same thing as a DVD. They just use different files as far as I know.
If you had one choice now, which format would you pick?
Blu-ray (What are your reasons?)
HD DVD (What are your reasons?)

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