CaedenV :
guvnaguy :
Does this mean 4K Blu-rays will require multiple discs? Right now a feature-length 1080p movie takes up most of the available space.Otherwise, I assume a more lossy compression standard would have to be used which would diminish the improvement.
4K has a lot of repeated pixels. When even under a lossless compression 4K is not typically going to be much larger than 1080p from a resolution standpoint. Adding HDR and the rest may add a bit of size to the content though.
At any rate, BluRay discs are 25GB per disc, and in professional archival storage they have had 100GB 4 layer discs for several years now. I am guessing that they will just start making 3-4 layer movie discs for the masses to make up for the file size issues.
Umm, Bluray discs you can burn stuff to are usually 25GB per disc, but most retail Blurays you buy for movies are 50GB discs now and have been for some time. If 4K is 4 times the resolution of 1080p and it requires a 50GB disc for a 2 hour movie with high resolution sound and special features now a days, there is no way that this will work without making a disc with probably at least 100GB. But when they do make these discs, can your current Bluray player even read them? My guess is no and we will all have to buy new stuff again, when Bluray is actually still pretty new, people are still buying HDTVs and Bluray players for the first time. I still know people that dont have a Bluray player and dont care about getting one, so we are going to jump to 4K now this quickly?
And @ShadyHamster, quite a few people still use discs, if you want the best quality you can get you use discs. I have over 500 Blurays easy and I buy most of the films I love to watch, I dont settle for crap Netflix streaming with low quality sound and no features what so ever. And you mean to tell me that with 4K being 4 times the resolution of 1080p, that quality wont matter to people who want it? You realize the bandwidth needed, even with a new good codec, to "stream" that over Netflix or something to people? Not to mention in the US, data caps keep getting worse on ISPs and with the courts pretty much shutting down net neutrality at the moment, who knows what they will do to you, I already pay $75 a month (up from $40) to get a 400 gig limit with decent speeds, before I payed less than that for my ISPs top consumer speed with unlimited data, now I pay more for less speed and less data allowance, and I come pretty close to filling that up each month with Xbox, Playstation, Netflix, Hulu, Amazon Prime and Steam, plus apps on my phone, games on my tablet and everything my wife also does. So yes, Discs will still be the best way for people who actually care about their movies