several other USB audio devices manufactured by companies like Griffin and Roland at that time. FS 1.0 was released for PC only, on a specially modified distribution of Debian Linux. It was relatively primitive but some users found that, if configured correctly, it outperformed all subsequent versions of Final Scratch 1.x. With version 1.1, Stanton Magnetics began working with Native Instruments on the software side of the product, which became Traktor Final Scratch. As the name suggests, this bore a resemblance to the interface of Traktor, a Native Instruments software DJing product. This version was once again available on Linux, but was also ported to Mac OS X. The next major revision was version 1.5, which added a Windows XP version, but dropped Linux support. This version also added the ability to keep the pitch of the record constant whilst shifting the tempo. The interface changed very little, but some users initially had issues with the Windows Scratchamp drivers. Support for the original Scratchamp has all but since disappeared and current owners, disappointed by the lack of support by Stanton, have had to rely on old versions of Traktor FS or Digiscratch. Version 2 Version 2 marks the introduction of both a new Scratchamp hardware device and different software compatibility. This new Scratchamp made 24-bit/96 kHz digital quality playback and record possible. Stanton added an ASIO driver, and MIDI capabilities. They also replaced the USB interface with FireWire which was intended to reduce playback latency. The new Scratchamp was developed by Alan Flum, Len Bryan, Mark DeMouy and Jim Mazur. The version 2 Scratchamp is compatible with Native Instruments Traktor DJ Studio versions 2.6 and through 3.2.0.85 (Mac). NI has dropped support of SA2 in favor of their own vinyl system Traktor Scratch. Final Scratch Open In late 2005, Stanton and Native Instruments ended their working relationship. Stanton still markets the ScratchAmp hardware as part of Final Scratch Open, introduced in early 2007. Stanton claims that the ScratchAmp can now interact with any audio software through ASIO or WDM on Windows, and CoreAudio in Mac OS X. Although all Windows and Mac audio software is ostensibly compatible with Final Scratch Open, there is no dedicated software program for deejaying with the ScratchAmp hardware. Internal workings The internal workings of Final Scratch are quite simple to understand. Multiple open source software libraries have been created to decode the Final Scratch time