I suspect that SACD was created partially to introduce format that cannot be copied. Unfortunately greed killed it at the very start. Price of over $30 for SACD was about double of CDs while royalties and cost of manufacturing was about the same. Media itself is double layered, but it is only very small difference (less than dollar). Now prices are way lower but it is too late. People lost interest, I know I did. I remember this happening many times in the past with Beta VCR, Iomega Zip, MiniDisc etc. Good way to establish standard is to promote it with lower prices and advertise it. I don't remember seeing any ads for SACD while Iomega instead of promoting their ZIP media charged $10 a piece suing everybody else (involving international courts). I remember seeing one car radio with MiniDisc but now there is none. If it is perfect format for the car - much easier than CD, then why is it gone? Because greed kills.
Good example of greed is region code protecting DVD profits. Same DVD sold in US for $20 is sold by 20th Century Fox in China for $2 (they even admit making small profit there). That suggest 1000% profit here protected by region code (that they forced on manufacturers of the hardware)
Popularity of computer based music servers is final nail to the coffin of SACD that cannot be used with server at all.
Good example of greed is region code protecting DVD profits. Same DVD sold in US for $20 is sold by 20th Century Fox in China for $2 (they even admit making small profit there). That suggest 1000% profit here protected by region code (that they forced on manufacturers of the hardware)
Popularity of computer based music servers is final nail to the coffin of SACD that cannot be used with server at all.