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After 18 years, Blu-ray media production draws to a close — Sony shuts its last factory in Feb
(www.tomshardware.com)
this post was submitted on 23 Jan 2025
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No, there was one next more "optical image" after Blue-rays. Archive Disc mainly used for backups in companies dealing with lots of images. Biggest one could take 2TB per disc, as much as tape drives. However, they didn't get adoption and it has been discontinued. Sadly
I mean it's cool for a disc, but HDDs still beat that, Seagate just released a 36TB HDD to mass market, optical always lags behind on storage density and speed
From wiki: https://en.wikipedia.org/wiki/Archival_Disc
That limit I mentioned has nothing with the 'technological limit'. Simply enough they lost with the adoption - if the clients wanted, they would get bigger archival discs.
I'm aware, I've done heavy research for my own mass cold archival plans.
It's a physics problem is why it lags behind HDDs so much, and to reach that 6TB on optical it's a cartridge with literal multiple discs inside. Adoption or no, it was never going to reach storage density parity with HDDs. Hell, even SSDs are having a difficult time taking on HDDs storage density
Optical drives already are surpassing magnetic or even ssd. https://en.wikipedia.org/wiki/Holographic_data_storage it's more advanced version of optical drives, for obvious reasons it's just a prototype and most likely it will stay so for quite a long time but still, optical storage hasn't reached the limit.
Tape drives go currently to 18TB with LTO9