It looks like you are using an ad blocker. That's okay. Who doesn't? But without advertising revenue, we can't keep making this site awesome. Click the link below for instructions on disabling adblock.
With this software, you can basically connect, two turntables (Mp3 or Vinyl, or both) and a turntable mixer, to your computer. I wanted to use this so that I could take vocals I was recording and scratch them. You can see what a setup would look like, if you click that link, and change the image (by clicking the Setup Example link, below the picture).