CSV (aka CSV渋谷 / CSV Shibuya) was a Japanese sound studio, distributor and independent record/audio shop in Shibuya, Tokyo that existed from Nivember 1985 until January 1988. They have also released some records on their own label called 1ℓ Records (1リットル Records), original VHS tapes and casstte magazine series "Hi'lde".
Eastern Works evolved into CSV and it was closely associated with Fool's Mate and Transrecords (2).
See also sound engineer Shuhei Karl Masuno.