"Matrix Reloaded" - Interactual?

Hey, guys.

Got my MR disc yesterday, which ruined my productivity. (Although,
dammit, the "Making Of" stuff is very slight, and I guess we're going to
have to wait for the big box set to get some decent commentaries.)

Anyway. I was curious to see there's a Mac OSX Interactual player on
Disc 2. As I've never encountered this beast before, I gave it a whirl.
However, while being online, I thought I'd see if I could "Authorize the
disc". Problem being, that once you hit the website, there's a
placeholder telling you (me) that you have to be using an Interactual
disc.

So, isn't the Second Disc an IA disc? And, if not, what are examples of
previously released IA discs, so I can give this a whirl?

Cheers!

Peter Briggs