By Andrew Eisner
Retrevo offers this overview of the new HDTV programming languages on high definition DVDs
Blu-ray and BD-J
Only the latest Blu-ray players support BD-J because the "profile" (1.1) that supports it was only recently approved. If you were an early adopter of a Blu-ray player you can't upgrade your player’s firmware to support BD-J enabled Profile 1.1 players. Because Blu-ray players that can run BD-J have only recently started to appear, there hasn’t been a lot of BD-J enhanced movies on Blu-ray discs – mostly just enhanced menus and PIP commentaries. As Blu-ray players become available that support BD-J we'll see more added features, called “bonus views” that include picture-in-picture commentaries, actor interviews, alternate angles, and behind the scenes footage.
HD DVD and HDi
Studio Branded Features
Movie studios have starting branding their own versions of interactive standards. This could allow them to provide the same features across Blu-ray and HD HVD discs. Warner Brothers calls theirs In-Movie Experience (IME) while Universal Studios has U-Control.
Warners's IME feature on the movie "Blood Diamonds"