HD DVD "twin format;" triple layer disc

[jedisinclair]

The first US "twin-format" HD DVD/DVD release (the anime title 'Freedom 1') doesn't hit store shelves until June 26th, but our Kenneth Brown got a sneak peak this week, and tells all in his just-posted review.
Not to be confused with double-sided HD DVD/DVD combo discs, twin-format discs can contain up to three layers of recorded content on a single-sided disc. 'Freedom 1' uses two of those layers -- a 15GB HD DVD layer, and a 4.6GB standard-def DVD layer. Looking at the disc itself, Kenneth says you'd never guess it's anything special. Unlike combo discs, one side has a printed label, while the other side looks just like a normal HD DVD disc. Pop it in an HD DVD player or a standard-def player, however, and the twin-format disc starts to work its magic, auto-detecting the player format and hopping to the proper layer without the user having to make any selection.

OK... maybe I don't understand, but isn't the point of buying hd dvd or Blu-ray to have HD content and NOT standard DVD? If I wanted dvd, I'd buy dvd... if I want Hi-Def, I buy Blu-ray... they really think this is cool?