Do you want an HD DVD player to prospect HD DVD movies?
Answer: yes, and it will play older DVDs too. Blu-Ray HD DVDs though are different and require a Blu-Ray HD DVD player. Happy HD DVD days...
yes
just the dual high def format hd-dvd blue-ray player or hd-dvd players or recorder will play these discs
the xbox360 with the hd-dvd affix on will also play these discs