Samsung has a unit that plays both for about $799. I just bought a HD-DVD with upconvert. The upconvert brings standard DVD up quite a bit but not to true HD.
I bought the Samsung HD-DVD after looking at the whole setup in depth. Blue Ray has a little more corporate support at this time but HD-DVD is less expensive for the manufacturers to upgrade to. DVD manufacturers can upgrade their lines with very little cost to make HD-DVDs while Blue Ray is a whole new manufacturing process requiring complete retooling.
Basicly to make HD discs it requires a blue, instead of red laser. Blue has a shorter wave length allowing the user to place more info in a smaller area. HD-DVDs in dual layer form are capable of holding 30 gig of info while the Blue Ray in dual layer is capable of 50 gig. One plus on the Blue Ray is that more layers can be added in the future to allow up to 100 gig info in a four layer setup.
I believe that because of the initial cost required to manufacture and mass produce Blue Ray, it will not be the chosen one.
No one will know for a few years.............
PS I just bought a Samsung 61 inch HDTV 1080p DLP with LED engine and the HD-DVD looks GREAT.
