Warning not present on Amazon HD DVDs?

[Firestreak]

Ok, look at these 2 pages.

http://www.amazon.com/Harry-Potter-G...?ie=UTF8&s=dvd
http://www.amazon.com/Harry-Potter-G...8857128&sr=1-6

If you notice, on the Blu-ray page, there's this line.

IMPORTANT NOTICE: This disc is a high-definition disc and is compatible only with Blu-ray players. It will not play on a standard DVD player. Click here to see our selection of Blu-ray players.

If you look at the HD DVD page, it's not there.

Why? You can't play it on a DVD, it's not even a combo disc, and even if it was... they should know you need the HD DVD player to play it in high definition.

Dunno about you guys, but the fact that the Amazon BOGO makes the Potter HD DVDs cheaper than regular DVDs and the fact that there's no warning they won't play on a DVD player is going to create some mistaken buys.