The CD is now 30 years old:
The digital music revolution officially hit 30 years ago, on Oct. 1, 1982. While you may be surprised to learn that the heralds of the coming age were, in fact, the Bee Gees, it probably comes as less of a shock to learn that Sony was at the very heart of it. After years of research and an intense period of collaboration with Philips, Sony shipped the world’s first CD player, the CDP-101. Music — and how we listen to it — would never be the same.
The CD is actually kind of strange. Most people would date CD’s to the late 80′s not the early 80′s. Presumably because of the adoption rate.
In related note, a curious little tidbit about the Sony CDP-101 from Wikipedia:
Due to the cost of producing Digital to Analogue converters at the time of its production, the CDP-101 features only one DAC, which is used for both the left and right audio channels. No sample-and-hold circuitry is present to delay the first channel until the other is ready, so the left and right channels are out of sync by approximately 11 µs.
Weird to think that’s what they had to do. Clever how they dealt with it.