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Old 12-11-2014, 12:29 PM   #1
ketan ketan is offline
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Default what is difference between bluray and 4k

what is difference between bluray and 4k
i mean 4k can play on our normal bluray player ?
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Old 12-11-2014, 12:32 PM   #2
ketan ketan is offline
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61VY-xC1m6L.jpg

this pic say something but i want to hear from our forum expert ......
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Old 12-11-2014, 01:58 PM   #3
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There are no 4k discs at the moment. When they come they will probably need new players.

Blu-ray is approximately 2k. The 'Mastered in 4k' discs are a bit of a gimmick, that means the transfer was created/mastered in 4k resolution but then downsampled to blu ray ~2k resolution. But what is on disc is not genuine 4k because there are no 4k discs at the moment.
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Old 12-11-2014, 02:20 PM   #4
mrbrat_Boy mrbrat_Boy is offline
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Hope This helps:



To me, this is technically a new format as all the current hardware will not support 4K. You will need a (To be Fully 4K compatible):

- Ultra HD (4K) TV or Projector
- 4K Receiver
- 4K Player (still not available, as there are no 4K discs available as yet)

Normal blu ray discs are 1920 x 1080, or 1080p. Just like Blu Ray (1080p) is an enhancement to DVD (720p), so too will 4K be an enhancement to Blu ray. Hope that makes sense
Attached Images
File Type: jpg 4K-Resolution-Comparison-e1358543249874.jpg (24.7 KB, 249 views)
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Old 12-11-2014, 06:56 PM   #5
Venky Venky is offline
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Isnt DVD only 480p i.e. 480X720
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Old 12-12-2014, 02:48 AM   #6
saramasa saramasa is offline
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Quote:
Originally Posted by Venky View Post
Isnt DVD only 480p i.e. 480X720
Yes it's 720x480 ,it will be stretched horizontally to 853x480 during playback.
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Old 12-12-2014, 04:27 AM   #7
ketan ketan is offline
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Quote:
Originally Posted by mrbrat_Boy View Post
Hope This helps:



To me, this is technically a new format as all the current hardware will not support 4K. You will need a (To be Fully 4K compatible):

- Ultra HD (4K) TV or Projector
- 4K Receiver
- 4K Player (still not available, as there are no 4K discs available as yet)

Normal blu ray discs are 1920 x 1080, or 1080p. Just like Blu Ray (1080p) is an enhancement to DVD (720p), so too will 4K be an enhancement to Blu ray. Hope that makes sense
okk i understand that
but what is this
http://www.amazon.in/Amazing-Spider-...zing+sipderman

http://www.amazon.in/Amazing-Spiderm...g+sipderman+4k

you can see price is different of both disc,just they are fooling us or
second disc is better than first disc
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Old 12-12-2014, 04:30 AM   #8
ketan ketan is offline
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i mean just forget about 4k
the sequence of our upgrade format of watching movies is
VHS
VCD
DVD
HD DVD
Bluray
and now 4k
or their in between blyray and 4 k
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Old 12-12-2014, 04:44 AM   #9
mrbrat_Boy mrbrat_Boy is offline
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^^ When a disc says mastered in 4K, it just means that the actual film was scanned in at '4K' i.e. the actual film being scanned in digitally.

When the blu ray is authored, that same 4K transfer is downscaled to 1080P.

I have watched three movies that have had this:
- Elysium
- The Innocents (1961)
- After Earth

While i can say that i haven't really seen a difference with Elysium and After Earth (As compared to other normally authored BD discs), The Innocents (1961) is considerably by far an excellent transfer (which i am sure benefited from the actual 4K scan).
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Old 12-12-2014, 04:46 AM   #10
Al_The_Strange Al_The_Strange is offline
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Quote:
Originally Posted by ketan View Post
Attachment 103132

this pic say something but i want to hear from our forum expert ......
Quote:
Originally Posted by ketan View Post
okk i understand that
but what is this
http://www.amazon.in/Amazing-Spider-...zing+sipderman

http://www.amazon.in/Amazing-Spiderm...g+sipderman+4k

you can see price is different of both disc,just they are fooling us or
second disc is better than first disc
Any current Blu-Ray movie you see with the 4K banner (especially the Sony ones) will be mastered in 4K, but since there are no 4K discs, they're going to output in 2K (1080p). It means that the original source material is actually bigger resolution than what the disc itself has. When you take a big ultra-high-def picture and shrink it down to 2K, it's going to naturally look sharper and cleaner than most other movies that aren't remastered. In our current cycle of movie releases and re-releases, it's like the equivalent to the Superbit DVDs, which looked a little better than others because of their mastering.

I'm not sure how the Spider-Man movies compare between the older Blu-Ray releases and the new 4K release, but I have upgraded my copies of RoboCop, TGTBATU, and Fargo to the 4K remasters. They all show improvement over older releases - the original releases may have been taken from outdated DVD masters anyway - but RoboCop is especially striking. I was also impressed by the 4K release of Rocky (never even saw the original Blu-Ray release). There are also numerous Criterion movies being released in 4K (such as Breaking the Waves), and some select movies (like Blade Runner, Alien, Baraka) have been mastered at 4K, and possibly 8K. Plenty of new movies, like Elysium, naturally come from 4K masters or higher. They all have perfect quality...on a 2K Blu-Ray.

4K Blu-Rays will come out next year, apparently. I have no idea if the difference between regular BDs and 4K BDs will be that significant, but from what I hear, it'll be super-sharp, super-clean, and extremely vivid in color. But as far as comparing 4K-mastered BDs to other normal BDs, it boils down to how better of a transfer you're getting (and it usually is an improvement).

Last edited by Al_The_Strange; 12-13-2014 at 07:10 AM.
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Old 12-12-2014, 12:44 PM   #11
saramasa saramasa is offline
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Consumers who've bought copies of the same movie in VHS, DVD, and Blu-ray aren't necessarily going to buy another version in Blu-ray 4K, and movie studios aren't necessarily going to trouble of remastering existing movies to take full advantage of the new format. But for new movies, already often produced in 4K versions, the decision to support the format is a lot easier.
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Old 12-13-2014, 01:45 AM   #12
nitin nitin is offline
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Quote:
Originally Posted by Al_The_Strange View Post
Any current Blu-Ray movie you see with the 4K banner (especially the Sony ones) will be mastered in 4K, but since there are no 4K discs, they're going to output in 2K (1080p). It means that the original source material is actually bigger resolution than what the disc itself has. When you take a big ultra-high-def picture and shrink it down to 2K, it's going to naturally look sharper and cleaner than most other movies that aren't remastered. In our current cycle of movie releases and re-releases, it's like the equivalent to the Superbit DVDs, which looked a little better than others because of their mastering.

I'm not sure how the Spider-Man movies compare between the older Blu-Ray releases and the new 4K release, but I have upgraded my copies of RoboCop, TGTBATU, and Fargo to the 4K remasters. They all show improvement over older releases - the original releases may have been taken from outdated DVD masters anyway - but RoboCop is especially striking. I was also impressed by the 4K release of Rocky (never even saw the original Blu-Ray release). There are also numerous Criterion movies being released in 4K (such as Breaking the Waves), and some select movies (like Blade Runner, Alien, Baraka) have been mastered at 4K, and possibly 8K. Plenty of new movies, like Elysium, naturally come from 4K masters or higher. They all have perfect quality...on a 2K Blu-Ray.

4K Blu-Rays will come out next year, apparently. I have no idea if the difference between regular BDs and 4K BDs will be that significant, but from what I hear, it'll be super-sharp, super-clean, and extremely vivid in color. But as far as comparing 4K-mastered BDs to other normal BDs, it boils down to how better of a transfer you're getting (and it usually is an improvement).
Spiderman 1 and 2 look noticeably better but not as much as Robocop, Fargo or Ghostbusters, but those last 3 had problematic older scans the first time around.
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Old 12-13-2014, 06:36 AM   #13
ketan ketan is offline
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Quote:
Originally Posted by saramasa View Post
Consumers who've bought copies of the same movie in VHS, DVD, and Blu-ray aren't necessarily going to buy another version in Blu-ray 4K, and movie studios aren't necessarily going to trouble of remastering existing movies to take full advantage of the new format. But for new movies, already often produced in 4K versions, the decision to support the format is a lot easier.
yeah that's why i am excited !
because i started collection 2 months ago (still score is 22 Blu ray)
In India still there are 5 to 8 titles,so i can buy this (so called) remastered 4k, i have some movies DVD or some movies VCD that can be updated to bluray or remastered 4k.
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Old 12-13-2014, 10:06 AM   #14
saramasa saramasa is offline
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Quote:
Originally Posted by ketan View Post
yeah that's why i am excited !
because i started collection 2 months ago (still score is 22 Blu ray)
In India still there are 5 to 8 titles,so i can buy this (so called) remastered 4k, i have some movies DVD or some movies VCD that can be updated to bluray or remastered 4k.
Format changes that offer better quality are often a pain for consumers especially those who pick the wrong one, as was the case when the Betamax videotape format famously lost out to VHS, or when HD DVD lost out to Blu-ray. Consumers don't have to worry so much about formats with streaming media like Netflix,Roku or You tube etc.
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nrD (12-13-2014)
Old 12-13-2014, 02:31 PM   #15
nrD nrD is offline
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True. But there's no concept of ownership through streaming
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Old 12-13-2014, 02:58 PM   #16
saramasa saramasa is offline
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Quote:
Originally Posted by nrD View Post
True. But there's no concept of ownership through streaming
Yeah i agree,But the ultimate beneficiaries of technology evolution are consumers..
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Old 12-17-2014, 04:07 PM   #17
sanjay0864 sanjay0864 is offline
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Quote:
Originally Posted by nrD View Post
True. But there's no concept of ownership through streaming
Actually, that is NOT true. You can 'own' Digital copies that you can stream via services such as Vudu & Flixster. I personally own several hundred movie which I can stream on different devices anywhere in the world.
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Old 12-18-2014, 10:49 AM   #18
crossbow crossbow is offline
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Quote:
Originally Posted by sanjay0864 View Post
Actually, that is NOT true. You can 'own' Digital copies that you can stream via services such as Vudu & Flixster. I personally own several hundred movie which I can stream on different devices anywhere in the world.
That is not correct specifically for India.
You cannot open netflix/flixter/Vudu account from India without using proxy.
And officially those services are not available for India. Same goes for codes bundled with blu-ray package imported from US/UK.

Yes, if you have valid US/UK netflix/flixster/vudu account, you can stream your content anywhere in the world.
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Old 12-18-2014, 06:36 PM   #19
nrD nrD is offline
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The thing is: you own a copy of those movies as long as vudu has servers and remains in operation. Or really, what if they delete a film you own from their servers for some reason or another?

You still have to stream the film, so all you really own is an access code to the file on vudu's (or other streaming service's) servers. You can't play that film from your own hard drive or your phone/tablet/media-device's local storage. That means if I'm on the road or in the plane, I basically don't have access to things I own to which I would have access if I brought a blu-ray with me or had downloaded a digital copy.
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Old 12-31-2020, 08:50 PM   #20
Phillip c. Niethe Phillip c. Niethe is offline
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Blue ray is a beam of light within the 450 to 485 nm wavelength / 620-670 Thz Frequency and 4K was the Klan's Karaoke cover band which disbanded after being beaten to death in Harlem back in 09'
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