[lastbitwritten]

Sony will happily sell you ODA at 6tb per cartridge for $$$$.

I think the video production folk use LTO and HDDs for long term storage.

Everyone who still cares would like multi-terabyte optical - but it’s not a big enough market anymore outside of long term corporate archiving (the ODA use case), and Sony probably doesn’t want to canabalize that market.

[rbanffy]

Sony sells decks and recorders for their high-capacity "Professional Disc" that can hold up to 128GB per disk. And then there is their cartridge to compete with LTO, the ODA Gen 3 that holds, IIRC, 11 discs with a total of 5.5 TB per cartridge. A bit less than LTO-7 (and half as much as LTO-8), but I don't think LTO tapes can survive being boiled in water.