Why doesnt Microsoft just use HD-DVD for "Special Edition" games and Normal DVD for standard Games?
Ok,lets use half-life 2 for example. Let's say Microsoft release half-life 2 for the xbox 360. The standard package could include Half-life 2 and Half-life 2 deathmatch and the making of half-life 2, where the "Special HD-DVD Edition" would include Half-life 2 , Half-life 2 Deathmatch, The making of Half-life 2, Counterstrike Source and Day of Defeat and whatever else Microsoft want to shove in there. This would be an excellent way to promote the advantages of HD-DVD, while not totally screwing the guy who doesnt have the addon drive.
They could also be priced competitively with the normal version being $35 and the Special Edition being $60, that way gamers get to choose if they want the extra content or not.
In my opinnion Microsoft could and should use the extra space to create "enhanced" versions of games instead of being restricted to DVD9. Yes i know it's cheaper to make DVD9 discs, but in the long run when games start taking 2 or 3 dvd's HD-DVD is going to look mighty tempting...
Just my two cents.