The Legacy Collection is a collection of VST instruments from Korg and was released in 2004. It consists of the Korg MS-20, Korg Polysix, Korg Wavestation, ARP Odyssey (under the later released Korg collection), Korg Mono/Poly, Korg M1 and Korg MDE-X Multi FX processor. They use Korg's proprietary CMT (Component Modeling Technology) to emulate the original hardware. The Legacy collection is compatible with ASIO RTAS VST and stand alone so it can be used without a DAW. It is compatible with both the PC and Mac and the software was originally supplied on CD-ROM but can now be downloaded via Korg's online store.