I knew about Archival Disc and ODA. It was definite proof that there could have been at least a 300 GB Blu-ray for 8K content. Instead, even these enterprise products are discontinued AFAICT.There is, it's called "Archival Disc".
Sony & Panasonic both STUBBORNLY refuse to release it to the mass consumers and try to limit it as a Enterprise solution ONLY, that FAILED miserably.
1 TB was promised multiple times as far back as the mid-2000s:
https://phys.org/news/2005-02-companies-holographic-versatile-disc-hvd.html
New DVD-sized disc to hold 1 to 5 terabytes of data
Mempile claims to be close to releasing a new type of optical media that can …
arstechnica.com
Fujifilm will introduce 1TB optical disc in 2015
(Phys.org)—Fujifilm is working on a new recording method for optical discs. It has developed the new method through the use of two-photon absorption in order to generate heat, and the report in TechOn! notes that this two-photon method is suited for multilayer discs. As the reaction caused by...
phys.org
Recently there was hype about a "petabit" disc, i.e. >100 TB:
https://www.tomshardware.com/pc-com...optical-disk-format-with-up-to-125tb-capacity
That is what I'm interested in seeing now, but it would never be pitched to consumers. We could only hope that drives and discs could become cheap enough to beat out other forms of bulk storage, and easier to use than tape. Wouldn't it be nice if an optical disc delivered 100x the storage per dollar than HDDs?