Honestly, I would just return the player and get a PS3 instead - the HD-DVD format
will definitely be dead soon due to the fact that only one major studio will be left supporting them in the very near future. Warner has dropped support for the HD-DVD format and it turns out that Paramount (possibly including Dreamworks), one of the only 2 major studios left exclusively supporting them, had a contract get-out clause in which they're allowed to drop HD-DVD and support Blu-Ray instead if Warner drops HD-DVD - which Warner just announced a few days ago. According to Financial Times, this will likely result in Paramount supporting Blu-Ray, ultimately effectively ending HD-DVD.
Do the smart thing and save yourself a few hundred bucks in the process.
NOTE: Also, If I'm not mistaken, I believe PS3 is widely accepted to be the best Blu-Ray player currently out in the market.