scratch live is the ultimate software and hardware solution for bridging the analog world of vinyl and the digital world of computer audio files. using regular turntables or cd players, you can scratch and mix files from your mac or windows xp computer s cd or hard drive, add in a live mic input for scratching, and even bypass to standard vinyl if you wish. scratch live is the complete digital solution for the vinyl junkie. the scratch live usb interface connects one or two standard vinyl or cd turntables to your computer. this extremely rugged, portable, high quality, bus-powered usb interface features two switchable phono or line inputs, a microphone input, two line outputs, and pass thru outputs for the phono/line and mic.