Blu-Ray is the superior technology, at least if they have been able to increase yields on disk manufacturing which I believe had been considerably lower than for HD DVD disks at one time.
I'm still a bit surprised that HD DVD is just going away. I would have expected players that played both formats would have become common first and then have the one format die out.
I guess that implementing both in the same player was more difficult than I thought it would be.
Actually there are some dual format players, but they are Blu-ray drives that can also read HDDVD disks. It's physically impossible to read a Blu-ray disk with the red lasers used by HDDVD drives. It wouldn't surprise me if some Blu-ray drive manufacturers include read only compatibilty with HDDVD in future products the way CD-ROM, and DVD-RAM, and DVD±R are already.
Here's a link to a previous post I made on the subject.
http://www.freerepublic.com/focus/f-news/1971098/posts?page=2#2