Master Grade Video Coding?

[Nermal]

I've just bought a Blu-ray and on the back where it lists the formats etc. it says "MPEG-4 AVC/MGVC" and has a "Master Grade Video Coding" logo next to it. Google isn't being particularly helpful so does anyone know what this is?

From the little information that I've been able to find, it seems to be an extra "layer" that sits on top of AVC and somehow increases the quality. Does anyone know how this works?

 

[nneufeld]

Sounds kind of gimmicky to me. Apparently this is actually splitting up the three component paths and giving each of them 12 bit depth for a total of 32 bit. Which is comical since most current digital cinema cameras shoot as high as 16 bit all together.

Even better, most consumer TVs are still 8 bit.

Seems to me that this is sort of future-proofing AVC and H.264 but since there's no current technology that actually provides this level of depth nor that displays this level...it's just another fancy logo on the back cover.

This isn't my area of expertise...but it sort of follows the pattern of industry upgrading.