Preloading Multiple MP3s

I’m trying to figure out a good way to preload a number of MP3s in my project. In short, I have a presentation that includes a number of slides and accompanying audio for each. So far, I’ve accomplished this by making each slide a frame within a movie. I either load the mp3s externally, in each frame, or from the library, loading them all in frame one, and playing them individually. Playback is controlled from a host movie that this movie is loaded into.
My issue is, I need to find a way to have the first slide start playing it’s audio as soon as it is loaded, while the audio for later slides is loading. I’ve tried making only the first mp3 Export for Actionscipt in first frame, but if the other files don’t export in the first frame, I can not seem to call them up using actionscript. Is there a way to get them to not load in the first frame, but to be downloaded to the viewer’s computer and ready to be called by actionscript later?
Thanks

Jeff Kirsch