Hey josh,
so i have the xbox 360 hd-dvd player that i use on my pc. This is going to be a tough one, but entirely Fixable.
the first thing you must know is this is a toboshi hd dvd player that is no longer supported by toboshi. The good news is all you are missing is the correct drivers and this will be (kinda) good as new.
disclaimer: while i have used this as a dvd, cd, player i have never gotten the hd-dvd player to work, as such i will not tell you step by step instructions but will point you in the right direction and wish you the best.
there is a form post on the hd dvd website that has a bunch of guys that claim they have gotten the player to 100% functionality. I have gotten the player to play a hd dvd, but only in a very small screen.
ok so i lost Interest so ill make this quick. You need to get a player like the Windows player or another player that plays the hd dvds format. Then you will need a driver for the player from toboshi. You can find the model in the form i mentioned. The xbox player has a clone that is kinda supported. Find that model number and manually download the driver.
Its a bit of work, but if you can get both parts ot will work.
I never found a program that plays the hd dvd format. Good luck.