Sony Cassette Tapes

Sony Group Corporation (ソニーグループ株式会社, Sonī, /ˈsoʊni/ SOH-nee), formerly known as Tokyo Tsushin Kogyo K.K. (東京通信工業株式会社, Tokyo Telecommunications Engineering Corporation) and Sony Corporation (ソニー株式会社), is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan.[6] The Sony Group comprises entities such as Sony Corporation, Sony Semiconductor Solutions, Sony Entertainment (including Sony Pictures and Sony Music Group), Sony Interactive Entertainment, Sony Financial Group, and others.


Sony was established in 1946 as Tokyo Tsushin Kogyo by Masaru Ibuka and Akio Morita. This electronics company, known for creating products such as the transistor radio TR-55, the home video tape recorder CV-2000, the portable audio player Walkman, and the compact disc player CDP-101, embarked on diverse business ventures. In 1988, Sony acquired CBS Records, and in 1992, it acquired Columbia Pictures. The company also introduced the home video game console PlayStation. In Japan, Sony expanded into the financial sector. In 2021, Sony transformed into a holding company, handing over the name Sony Corporation to its subsidiary electronics company.

Sony used the Compact Cassette format in many of its tape recorders and players, including the Walkman, the world's first portable music player.[65] Sony introduced the MiniDisc format in 1992 as an alternative to Philips DCC or Digital Compact Cassette and as a successor to the Compact Cassette.[66] Since the introduction of MiniDisc, Sony has attempted to promote its own audio compression technologies under the ATRAC brand, against the more widely used MP3. Until late 2004, Sony's Network Walkman line of digital portable music players did not support the MP3 standard natively.

In 2004, Sony built upon the MiniDisc format by releasing Hi-MD. Hi-MD allows the playback and recording of audio on newly introduced 1 GB Hi-MD discs in addition to playback and recording on regular MiniDiscs. In addition to saving audio on the discs, Hi-MD allows the storage of computer files such as documents, videos and photos.

https://en.wikipedia.org/wiki/Sony