>4.84TB in a single slab of glass, (the slabs are 12 cm x 12 cm and 0.2 cm thick).

So a rough estimate, at the size of UMD, used in Playstation Portable, slightly smaller than the size of Mini Disc, it could store 1TB.

I assume we could do double layer in the future for 2TB.

For comparison that is roughly 1000x times the capacity of UMD. I would love to have this. Burn a few of these as backup and call it a day.