Sony Vegas A.13

Sony Vegas A.13 was a special version of Sony Vegas that was released in 1991. Only owners of Sony Vegas could download it. It is now considered lost media since there is no existing copy of it.

The software supposedly came with updated versions of the audio plugins, such as a updated version of the track EQ that had a real time frequency analyzer. The reverb was also supposedly updated from mono to stereo. It is unknown why newer versions of Sony Vegas don't contain these updated audio plugins.

It is speculated that the software was removed because a fault in the code that caused it to be harmful to computers. Sony has not publicly stated anything about this software since its removal.