Masterdisk is an audio mastering studio located in New York, New York, established in 1973. The studio was previously organized as Mercury Records Mastering. In 1975, the label decided to opt out of the studio business and sold the Masterdisk division to medical equipment company OCG Technology Inc. In 1982, Doug Levine bought Masterdisk and in 1990 Masterdisk acquired its new location, comprising the entire 5th floor of its Manhattan building. In 2008 mastering engineer Scott Hull bought Masterdisk.