Blu-ray and HDDVD, I think, will both die quickly.

There will be the odd one or two people that will get them to go with their HDTV equipment and then find that they wont work together due to different connecters and the need to spend $600 on a converter that is needed to bypass the DRM c**p. There is so much DRM wrapped up in them that even the studio's are now re-thinking things (http://www.tgdaily.com/2006/03/27/un..._stand_on_ict/)

Persoanlly they have locked the format down so much that even looking at the disc will cause failure to play on a set-top box for fear that you have a video camera pointed at the screen. I would not put it past them to stop set-top drives playing recordable discs because you could have copied an original movie onto it.

As always, this is my personal opinion and is probably total b***ks