So is Blu-Ray 21st century LaserDisc?

[archer9234]

SvennoJ said:

invetedlotus123 said:
If anything, maybe next media format would be what we last expect. SD cards are already getting into the house of hundred of gb ( ultra-expensive, nowadays). But if they decide to use a memory card for holding the 8k files ? From now, til 4k get some adoption , til 8k, there should be at least 10 years in the process.

I doubt that SD cards will ever be as efficient price wise as a disk. You don't have the overhead of circuitry with a disk.

I imagine that at some point the disk will be stationary and the laser will be the part that moves by mirrors.
Combine http://www.dailytech.com/Scientists+Create+360+TB+Superman+Crystal+Discs/article31933.htm with http://www.iflscience.com/technology/worlds-fastest-camera-takes-44-trillion-frames-second, direct a laser beam into a cube and analyze the light that comes out to retrieve your data.

Although I see optical holographic storage is already old news
http://physicsworld.com/cws/article/news/2014/feb/27/data-stored-in-magnetic-holograms
Maybe SD cards based on that technique will be the future.

It's the fight for time and space. If a TV resolution end point is decided by the majority. Movies/shows will stop getting bigger. And then space won't change. So if SD cards hold out as a use for that time. They will be cheap to be used as physical media. But too many if's everywhere.