New H.265 twice as efficient as H.264!

[Teazle]

Originally Posted by Geoff D

I could be wrong, but the regular flavour of AVC (never mind the claimed 50% efficiency saving of the eyeIO version used by Sony for their 4K download service) wouldn't have too much trouble bringing in a 2 hour 4K movie under 100GB using Blu-ray level bit depth and colour sampling standards.

I'm skeptical about such claims but I don't deny the possibility.
I might change my mind if Expendables 3 theatrical looks good at only 138gb (says Penton). And that's presumably 4:4:4 chroma res & in some fat color space. Idk how they squish it so small.