Some users keep an older version of FL Studio or a dedicated 32-bit machine specifically to run legacy Edirol plugins. Edirol Super Quartet VST Free Download Link: Is it Legal?
was released in the early 2000s and is now abandonware (no longer sold or supported by Roland/Edirol). Because of this, you won't find a legitimate "free download" from an official store — it was never made free by the company. edirol super quartet vst free download link