Adding audio to still menu

newbie with audio question. i own dvdremakepro and i have merged 3 concert videos. for now i am keeping the generic menu that is generated by DRMP . what i want to do is add an audio loop to that will play depending on what button is highlighted. I have the mp3 files for each loop that i have converted to ac3. how can i import them into the menu and have them play until a button is selected. at the present time there is no audio and it is a static menu. i have searched through many threads with no luck. also is there a program i could buy that would simplify this task.
Thanks to all.