Vegas Pro (stylized as VEGAS Pro, also referred to as Sony Vegas) is a professional video editing software package for non-linear editing (NLE). The first release of Vegas Beta was on 11 June 1999. The software is limited to machines running Windows as an operating system. Vegas was originally developed as a non-linear audio editing application. Version 2.0 would split the program into audio and video editing variants, with the former being dropped by version 4.0, making the video offering the only variant available to consumers.
https://en.wikipedia.org/wiki/Vegas_Pro