Compatibility issue between HD DVD and Blu-ray seen the other way round

Without an agreement between supporters of the HD DVD and Blu-ray standard on a unified product, and since no manufacturer seems able to create a universal burner, Warner decided to take the problem the other way round. They may propose future disks readable on the two types of decks as well as in DVD players.
Those medias would contain 3 layers. The closest to surface would be the Blu-ray layer. A HD DVD compatible reader will not be able to focus on it, and will hence go to the underneath one, that's compatible. DVD players will also have access to a compatible layer.
If this solution is elegant, it doesn't solve the problem, which could only be done for the sake of the consumers' by achieving a single format.