Have you checked out our FAQ page? EMail info@boombuster.com Mail 1630A 30th Street #281 Boulder, CO 80301 BoomBuster V3.0 – MP3 tracks Three-track downloadable .zip file Upload to iTunes or smartphone Works best with headphones or bluetooth speaker BoomBuster V3.0 – Audio CD Three-track hardcopy CD Shipped straight to your door Play in any CD player or stereo