Thirty years ago today, Sony’s CDP-101 compact disc player went on sale in Japan. According to Benj Edwards at TechHive, the CDP-101 retailed for the equivalent of around $674, which today would be ...

After more than a decade of work, building on an idea first posited in 1931 for a device known as the “optophone,” Sony of Japan and Philips of The Netherlands, finally arrived at a new music storage ...