WB... As soon as WB became "blu exclusive" the game was over. Eventhough HD DVD sales were always behind... Anyway, that was another time!
I think what disney and Fox are doing for now is fine, no need for a new type of disc. Just include a dvd for a slightly higher price and give consumers the choice. I always buy the 3-disc combos from Disney now, that's always easier for my daughter as she doesn't always want to watch her movies in the HT, fox is doing the same lately and I'm fine with it. For now I don't trust the Universal solution, but we'll see; as long as they're reliable and work properly!