To me it looks like this whole menu was created in a software like after effects.  Authoring this type of menu is easy so long as you know how to create the video files for it.  The rendered videos are imported into DVDA.  You drag the green loop slider to the loop point and add your buttons (drag the video clip on the menu).  Change to image only and delete the thumbnail so it is blank.  Then add your custom highlights.  The highlights should be created in a graphics editor (I use photoshop).  Be sure to set the color sets for the highlights.  Normally people would author this type of movie with the following navigation:

main => transition => scene => transition => main

I personally do not like this because it is not seamless.  Better would be:

main1 => t_scene_1 => t_main2

t_scene_1 would have the transition encoded into the video file.  This would make the transition to scene seamless.  Otherwise, there is a pause, depending on the player, up to 2 seconds between transition and menu.  IMO I would rather not have the transitions if I am watching as the pause would be annoying.  Also, make the transitions fast.  The transition here is 10 seconds from main to scenes...  This is far too long.  It's really cool for showing off, but no one likes super long transitions in movies when they actually watch.  Limit to maybe 3 seconds.

I've personally stopped making motion menus becuase they are just a novelty.  No one really cares and it isn't worth the time to do it.  The after effects portion of this can take a long time as there are a ton of effects going on. FYI, this is what this type of menu would look like in after effects.