If you are talking about the pure DVD specification and adding sounds of click as when a button is activated - then as far as I know this has not been included in the spec and would not be possible in any authoring tool.

The entire purpose of DVD-video button on the interface is to allow navigation to events which can be audio as well as video. So a brief musical play event can be activated by a button.

If you are talking about an autorun app for a DVD/DVD-ROM on a PC platform - then that is a wholly different issue. Entirely outside of the parameters of a DVD-Video spec, these apps do allow you to create (example Windows programming language) button with sound of cliks or... that is, creating a standard PC programming interface usually to allow access to extras on the DVD disc.

> "Is there an option to make buttons with sounds when they are selected or activated? Is there anyway to do this in DVDA? Is there any DVD app out there that can do this?"

Everything on a video DVD is event driven, but you're limited to playing mpg2 video & optionally an accompanying audio track. When you select or click a button, that linked video can be on another menu page or a stand-alone video file. As DaveT2 points out there may be a bit of a delay when playing a separate video file -- you *might* reduce that by loading a menu page instead. You might find a simpler menu background loads more quickly in a player -- you might find a single celled menu loads faster [one without a loop point] -- you might find mpg2 audio loads faster -- but I could be wrong on any of those 3 so test on as many players as you can. If you used a single celled menu you'd want to either hold when the background video ended or jump to an identical page without the initial beep or whatever button audio effect.