I say the following even though I'm a disc fan who still occasionally buys discs, imports discs, and I even subscribe to TWO disc-by-mail rental services.
It is inevitable that streaming video quality will equal and surpass discs. Already there are two streaming CODECs (AV1 and VP9) which are superior to the CODECs used on discs. Discs use HEVC (H.265), and are stuck with it in order to have backward compatibility. It doesn't stop there. The next CODEC is being worked on, VVC (H.266), and just like AV1 and VP9 I expect streaming to adopt it while discs to remain on HEVC.
Furthermore, there is little chance of a new disc format being created in order to take advantage of continuous advancement. The existing 4k UHD is likely to be the last disc format. Physical disc sales are plummeting off of a cliff. Who wants to invest into that? Many long time disc player manufacturers have given up making them. The Blu-ray Association has said there is no talk of making 8K Blu-ray discs. The 8K Association says the same thing.
I will agree on one point where discs still have a massive quality advantage. I have never heard streaming audio that sounds anywhere near as good as audio on Blu-ray discs. It does not take an audiophile to hear the difference. For fun I did A/B tests on random titles and every single person can hear a dramatic difference. It also doesn't take an audiophile system. I have a cheap $300 5.1 speaker setup--at $50/speaker this is cheap gear. And yet the difference even on this cheap set is enormous.
It is inevitable that streaming video quality will equal and surpass discs. Already there are two streaming CODECs (AV1 and VP9) which are superior to the CODECs used on discs. Discs use HEVC (H.265), and are stuck with it in order to have backward compatibility. It doesn't stop there. The next CODEC is being worked on, VVC (H.266), and just like AV1 and VP9 I expect streaming to adopt it while discs to remain on HEVC.
Furthermore, there is little chance of a new disc format being created in order to take advantage of continuous advancement. The existing 4k UHD is likely to be the last disc format. Physical disc sales are plummeting off of a cliff. Who wants to invest into that? Many long time disc player manufacturers have given up making them. The Blu-ray Association has said there is no talk of making 8K Blu-ray discs. The 8K Association says the same thing.
I will agree on one point where discs still have a massive quality advantage. I have never heard streaming audio that sounds anywhere near as good as audio on Blu-ray discs. It does not take an audiophile to hear the difference. For fun I did A/B tests on random titles and every single person can hear a dramatic difference. It also doesn't take an audiophile system. I have a cheap $300 5.1 speaker setup--at $50/speaker this is cheap gear. And yet the difference even on this cheap set is enormous.
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