Flash because it's cheap enough, high density, arbritarily scalable for whatever storage is needed.
Streaming because the difficulty making any optical rewritable (especially with respect to write speed) meant the niche overlapped with bluray and DVD, but why bother with yet another optical disk for films and games when bandwidth becomes more important than single-disk capacity.
Flash because it's cheap enough, high density, arbritarily scalable for whatever storage is needed.
Streaming because the difficulty making any optical rewritable (especially with respect to write speed) meant the niche overlapped with bluray and DVD, but why bother with yet another optical disk for films and games when bandwidth becomes more important than single-disk capacity.
There's also a bunch of technical difficulties, but when there's no market for the result, R&D efforts are often less well funded: https://en.wikipedia.org/wiki/3D_optical_data_storage