, spivonious wrote

Anamorphic 480p versus 1080p; 16/24-bit color depth versus 32-bit color depth; lossy DD 5.1 versus lossless TrueHD 7.1.

That's a lot of diff information to store.

Yeah but you also save space through a vastly superior codec.  Color depth is the same, blu-rays don't support deep color.  And lossless audio is pretty niche, I'd say only a handful of people have a setup capable of taking advantage of it.  Even if you can decode it, average speaker quality and a low chance of perceived quality difference put it way into the audiophile camp.

I think you could get great quality 1080p/5.1 over 10 mbit.