If you’re using Encore, you can make up your menus and buttons in AE. Then you can set the button layers so they’re recognised as such in Encore – layer, adobe encore dvd, create button. And also set your subpictures (the highlighting that occurs when you select a button on a dvd) – layer, adobe encore dvd, set as subpicture 1 (first nest the subpicture[s] inside a comp you make for your button). You can then go to the frame of your menu animation (or the first frame if it’s a still menu) and save it as a photoshop file to import into Encore – composition, save frame as, photoshop layers. You can import the PSD into Encore as a menu, so Encore knows what type of asset (general name for file imported into Encore) it is. So, as you’d expect from 2 progs made by the came company, they work quite well together.