Re: Sony's BRAIN DEAD Entertainment division
All these technologies were developed by Sony before they bought the entertainments business. They'd also developed a CD writer. But to avoid the Betamax problem happening again they bought themselves into the content market, that way the could ensure that their format was used. But all these great technologies they'd developed then became an embarrassment. The planned price of the blank CDs went from about £1 each to more the cost of any CBS pre-recorded CD, so that is wasn't sensible to pirate your CDs.
In the end it didn't help. The next format they were trying to protect was HDTV, Sony's proposed standard was 1920x1200, but instead the crappy 1920x1080 format won out. I used their HDTV monitors on a Unix workstation in around 1990, 1920x1200 and 40" :-) gorgeous.