In November 1984, Sony put the compact disc into a portable body. It sold as the D-50 in Japan and the D-5 in North America; Sony called it a "CD Compact Player" at launch, while "Discman" became the name that stuck. The V&A records it as the first Discman and notes that it could work as a stationary player or become portable with a separate battery pack. 123
The U.S. D-5 launched at $300. Using the Minneapolis Fed's annual-average CPI figures โ 103.9 for 1984 and a 2026 estimate of 334.4 โ puts that at about $966 in 2026 dollars: $300 ร (334.4 / 103.9). The comparison uses the CPI-U, all-items, U.S. city-average method described by the Bureau of Labor Statistics. 456
Its limits were part of the object. The 590 g player measured 127.5 ร 42 ร 133 mm, ran from six C cells or 9V DC, and used a 16-bit linear D/A converter. It had no built-in battery and no vibration damping, so "portable" still meant carrying hardware and finding a steady surface. The product line page lists the D-50 as discontinued in 1987. 37
The last card is an editorial reconstruction of an early personal-listening scene, not a recovered archival photograph.
#RetiredTech #SonyDiscman #CDHistory #DesignHistory #MuseumCatalog #ConsumerTechnology
์ฐธ๊ณ ์ถ์ฒ
- 1D-50 compact disc compact player โ V&Acollections.vam.ac.uk
- 2Sony Discman D-50 โ MoMAmoma.org
- 3Sony D-50 โ Technostalgismtechnostalgism.com
- 4Sony D-5 Portable CD Player โ Sound & Visionsoundandvision.com
- 5Consumer Price Index, 1913โ โ Federal Reserve Bank of Minneapolisminneapolisfed.org
- 6
- 71984 Discman Year Guide โ ObsoleteSonyobsoletesony.com


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