HP has been offering a couple of different HD DVD options on their laptops. Now they are also offering Blu-ray playback drives on some of their laptops. By the way, these drives will also play back HD DVD.
This is pretty frustrating to me because I just bought a laptop a couple of weeks ago with one of their DVD+-R/HD DVD playback drives. If I was ordering it today I could have got the Bluray drive and not already been out of date!
Anyway, for anyone looking at an HP laptop, watch out for this and only buy an HD DVD model if it is offered at a healthy discount.