Inside Walt’s Story Meetings is basically the same as a Warner Bros. Maximum Movie Mode, in that the film is relegated to a smaller window, with the bulk of the behind-the-scenes stuff being played out in the main window. I've not spent much time on this, but I believe you can opt to "branch out" at certain times, much like the "focus points" on a MMM.
The image galleries are the same as on Fantasia. So a big thumbs up for me, the galleries are my favourite segments and I'm pleased Disney seem to be moving forward (even if some of this disc is a step back from other Diamond editions).
The short The Old Mill is presented in SD

The UK disc is marked as ABC, while Bambi II is marked as just being B and C. Obviously Disney US doesn't want any copies sneaking into the US. Or does it - the outer case holding both discs is simply labeled ABC. Does this mean the sequel is really ABC? Sadly, I don't have the equipment to test.