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>All in all, a DVD-size version of the new disc has a capacity of up to 1.6 petabits—that is, 1.6 million gigabits. This is some 4,000 times greater data density than a Blu-ray disc and 24 times that of the currently most advanced hard disks.

1.6 petabits is 0.2PB, or 200TB. The highest shipping density hard drive is 22TB or 30TB depending on whether you are consumer or cooperate customer. But even with 22TB is is only 9 times. Not 24 times.

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The highest density hard drives have 10 platters[1], storing about 2.2TB each. So if they're talking density in terms of bytes per square cm, 24 is probably reasonable. HDD platters are certainly smaller than DVD-size, and the 24x claim would be true if they were ~25% the size of a DVD which seems about right.

[1] https://blocksandfiles.com/2023/04/13/seagate-22tb-disk-capa...

And if we are willing to include newer EDSSF SSDS, we are already at 256TB per drive.

https://www.servethehome.com/samsung-256tb-e3-l-nvme-ssd-at-...

We're looking at what, multi PB per 1U now? Future is getting insane!

Yes. 8PB per 1U. Or Nearly 1 Exabyte in 3 Racks. Unfortunately the 256TB was really a Tech demo only. Last time I checked even the 64TB EDSFF wasn't selling due most companies thinking 32TB was the sweet spot for redundancy, safety etc.

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