I am still unable to access much of my video collection because half of my stuff is still blocking the way until some home repairs are finished. To the best of my memory, the original MGM DVD has an animated menu with sounds. (The pod bay door opens and a pod exits Discovery and rotates.) The Warner DVD menu looks similar but is static, yet has the same sound effects playing.
I haven't watched either disc since before I got a widescreen tv, so any aspect ratio difference in the menus would not have been seen by me.