Manufacture of magnetic and optical media

Efforts to manufacture magnetic and optical recording media for sound, images and data, which are mainly made of plastic, such as blank magnetic audio and video tapes, blank magnetic audio and video cassettes, blank phonograph records, films that are not sensitive to light, tapes for recording data and blank discs or diskettes and blank optical discs and hard drive media. The business of making films that are sensitive to light is included in the 20299 group. The business of sound recording using cassette tape media and phonograph records is included in the 59201 group. Meanwhile, film image recordings and video tapes are included in the 5911 sub-category (Production of Moving Pictures, Videos and Television Programs). Data recording businesses using tape, disk or diskette and the like that use computer services are included in the 62090 group