When you create a DJ mix on the Pacemaker hardware, all the data representing your mix manipulations (crossfades, EQ, filters, etc.) gets saved as well. When you transfer your mix from the Pacemaker hardware to your Mac or PC, you can refine the mix in the free Pacemaker music editing software. Once the mix is perfected, you can publish it directly to the Pacemaker online community and share it with others--legally. Users who don't shell out for the Pacemaker hardware can still use the free Pacemaker software to create and share mixes.