The Sound Design featurette has interviews, clips and some behind the scenes clips of how the sound effects were created and how. This one is also three minutes. Finally, the Audio Mix Demonstration is pretty neat, where you can mix dialogue, sound effects and music from the meteor. This is a great interactive experience, as you see each sound element come together and how each is so important. It's good to play around with a few times, and it makes you realize how signifigant sound really is.
Some scenes are storyreels with music and sound, others, with rough animation.
Once again, Disney creates a great set to satisify any fan of the film. I personally think this movie is just a little bit underrated, but there's no denying that Disney has once again made animation history. This is a must have title for any collection. I'm sure some of you don't care that much for extras and will go for the standard version, but I highly suggest you get this two disc set which offers a very diverse and detailed history on such an involving project. You'll gain a lot more out of it in the long run.