Re: UHD Blu-ray is already sunk
TRY scratching a blu-ray disc ... go on, I dare you.
They have an anti-scratch coating of almost magical efficacy ... they HAVE to because the data layer is very close to the disc surface. I have approximately 100 blu-ray discs and not one has scratch. I've had discs bouncing around in their container across the Atlantic, a kiss of death to a DVD and NO scratches.