|Serato Audio Research is an Auckland, New Zealand based software developer, specialising in audio production and performance tools. It was founded in 1998 by Stephen West and AJ Bertenshaw who developed a timestretching and pitch-shifting Pro Tools plugin, Pitch 'N Time.
With that technology they focused on the evolving vinyl emulation software market and developed Scratch Live, first released in 2004. The software required the use of an external sound card to capture audio of the timecoded audio. For this they worked with Mukilteo, Washington-based Rane Corporation. Rane developed the USB based SL1 and Serato developed the necessary control records.
In 2006 they launched an online music distribution site, whitelabel.net. Files are shared with the file extension .wl.mp3. Stored inside the file is a mono copy of the song playable in standard players, a high quality Scratch Live version of the song, ID3 meta data, full visual track overview and BPM of the song.
In 2008 Serato released the eighth major release of Scratch Live, 1.8, offering video support via the Video-SL plugin.