Father of the CD, Norio Ohga, Dead At 81
lightbox32 writes "Norio Ohga, who was Sony's president and chairman from 1982 to 1995, died Saturday at the age of 81. He has been credited with developing CDs, which he insisted be designed at 12 centimeters (4.8 inches) in diameter to hold 75 minutes worth of music — in order to store Beethoven's Ninth Symphony in its entirety."
Gregg invented in the laserdisc in 1958 (!), selling patent to MCA who developed commercially with Philips. Sony contributed some work on error correction to the Red Book standard, but the hard work of hardware design and modulation technique came from Philips, building on their laserdisc work.
What Sony did, and has ever done since, was see a market to exploit.