XtremePlace Forum

AV Galaxy => Planet Displays & Projector => Topic started by: alf on March 08, 2019, 13:29

Title: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 08, 2019, 13:29
There hype of having a true 4k display units like TV or Projector , if you are watching down loaded a or streamed content will you benefit from true 4k display than ?

This was one of the topic that we should consider if you planning on your set up .

Down load sources or streamed type are they true 4k or up scaled for both audio and video  ?

Let’s share on your views .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: lchua6 on March 08, 2019, 14:26
I watched a few streamed 4k content but the result, especially audio, was worse than normal blu ray. Maybe my set up is not suitable for streaming...

The 4k TV cannot zoom 4k content to remove the top and bottom black bar. In the end, I went back to normal blu ray.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: DJQ on March 08, 2019, 14:46
the data packet size will tell you whether the content itself is true 4k.
previously only pic data is true 4k. but audio limited to stereo or just basic Dobly D5.1
i am seeing streaming content with on netflix so i am not sure the 4K PQ and Audio with it.
but yes true 4k content you need 4k display with a good 4k player.
my 2cts.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: comfortablynumb on March 08, 2019, 14:48
If wanna dl 4K content must make sure it’s 1:1 rip and from known and reputable uploaders
Usually around 50gb

Using utorrent or BitTorrent is not the way to go
I dl 50gb takes me 20-25 mins max
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: Doggie Howser on March 08, 2019, 15:58
Some of my Netflix stuff at 4K looks pretty good. Not all. But some. Vincent Teoh HDTVTest did a test comparing Spiderman HomeComing on Apple 4K vs the UHD disc and the differences are much smaller than you'd expect.

Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 08, 2019, 17:06
If wanna dl 4K content must make sure it’s 1:1 rip and from known and reputable downloaders
Usually around 50gb

Using utorrent or BitTorrent is not the way to go
I dl 50gb takes me 20-25 mins max

If I am not wrong 50gb is the max of bluray for both audio and video .

The thing I realise down load it states is 4k on the ripping likely it is not accurate .

As I did a comparison in a client house with same title , the best result is 4k UHD disc .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 08, 2019, 17:10
the data packet size will tell you whether the content itself is true 4k.
previously only pic data is true 4k. but audio limited to stereo or just basic Dobly D5.1
i am seeing streaming content with on netflix so i am not sure the 4K PQ and Audio with it.
but yes true 4k content you need 4k display with a good 4k player.
my 2cts.

Yes very true base on the Data pack size will be more accurate .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: rayleh on March 08, 2019, 23:16
To me, nothing beats the disc format. Even 4k and atmos from Netflix can't beat the 4k disc with atmos. The audio from the disc is more defined in a sense.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: simic on March 09, 2019, 00:12
Nf 4K streams are encoded to be about 15mbps target average bitrate. When u begin streaming, it will buffer and u get maybe 80mbps peaks.

Br 4K average around 60mbps and can peak at about 120mbps for intense scenes.

Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 09, 2019, 06:15
Most likely it will be the same as Starhub box does intelacing as we get 1080i on our TV .

Even if we are checking on the info some will state 1080i and some will state it is 1080P.

Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: sevenz on March 10, 2019, 00:09
As I did a comparison in a client house with same title , the best result is 4k UHD disc .

Wow this is good discussion. :) Thanks for starting this!

So meaning, even if 1:1 rip type of download, when pit against the 4k UHD disc of the same title, your impressions are the video and/or audio is better for disc? 
Title: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: desray on March 10, 2019, 07:43
Wow this is good discussion. :) Thanks for starting this!

So meaning, even if 1:1 rip type of download, when pit against the 4k UHD disc of the same title, your impressions are the video and/or audio is better for disc?
Without a doubt that disc media having a higher capacity will be able to house the higher bitrate video and audio of the master copy of the movie itself. With a dedicated 4K UHD Blu-ray player to do its job, this is the easiest and best way to ensure you are getting the very best of that 4K movie.

However I will not go so far as to declare that the quality of the 1:1 rip from a 4K UHD disc will almost always be inferior from the actual disc itself. It really depends on the program settings and the encoder used to rip. I have some Planet Earth II rips using MakeMKV with 1:1 rips and I have a hard time differentiating the PQ between a ripped version and a disc version. The difference if any is almost negligible especially if the display (OLED TV or Projector) is the one doing the upscaling and video processing work from the content itself.



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Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: Boxerfan88 on March 10, 2019, 08:08
1:1 rip with no conversion should be bit perfect, therefore no difference with disc. No?

Of course if A:V stream is re-encoded then it’s no longer bit perfect.


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Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: desray on March 10, 2019, 11:08
1:1 rip with no conversion should be bit perfect, therefore no difference with disc. No?

Of course if A:V stream is re-encoded then it’s no longer bit perfect.


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Choose source direct whenever possible. If no source direct, choose what the encoding specify like YCC 4:2:0 10bit and still the difference will be minimal.


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Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 10, 2019, 20:18
To me, nothing beats the disc format. Even 4k and atmos from Netflix can't beat the 4k disc with atmos. The audio from the disc is more defined in a sense.

Yes this was also my observation and my Test and Commisioning .

If base on the same ripped content source , play back at TV and 2.1 audio it will not see and hear the significant .

On a larger screen ex 100” size and 7.1.2 it will be apparent .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: sevenz on March 11, 2019, 16:19
Ooo.... thanks for the super good info sharing :)
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: eggz on March 12, 2019, 14:03
Based on my experience, watching Prime streaming in 4K and UHD on a 65inch LCD (Sony Z9D) makes quite a lot of difference vs 1080p

Agreed on a PJ and big screen (100inches) quality of source is really important. Typically it's better to go for HEVC encodes regardless of file size as you'll usually get better quality overall since X265 is far more efficient than X264.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: DJQ on March 13, 2019, 11:36
+1, thats also another point to look out for.  :)
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on March 13, 2019, 17:28
It is all about what you feed in to your system , my old guru tells me rubbish in rubbish out .

We have to be aware of what you are type of source your feeding in yours system the limitation you can obtain .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on April 25, 2019, 21:16
Well if one are streaming or playback from your storage or media centre , even if having the best 4k cables and a TRUE 4k chip or UHD chip Projector and the best projection screen the image cannot beat the 4K player with 4K disc .

Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: congsterz on June 07, 2019, 22:41
Interesting:


https://youtu.be/YSZ-yFTSmfY
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: tsammyc on June 10, 2019, 08:50
Just to note, the 4K HDR content from the Apple iTunes store off and Apple TV 4 can reach a higher level of definition and color than Netflix. So, the 4K picture depends on at least 3 things. 1. The content provider (Netflix, iTunes, UHD Blu Ray) 2. The display system (OLED, Projector) 3. The playback device (UHD Blu Ray, Apple TV, Nvidia Shield)
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: mutant on June 11, 2019, 11:48
Side track abit. Can anybody share or PM me links for good quality torrents?
Quite long never use torrents.  ;D
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on June 12, 2019, 22:13
Interesting:


https://youtu.be/YSZ-yFTSmfY


congsterz... good site,  this is also why some times when you watch 4k HDR movies at time you find the picture is a bit grainy .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: comfortablynumb on June 12, 2019, 22:20
Side track abit. Can anybody share or PM me links for good quality torrents?
Quite long never use torrents.  ;D

Private torrents way to go....
Fast speeds and full bluray rips as large as 70gb
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: rock123 on June 12, 2019, 23:39
A buddy ask if Netflix can stream 4k movies now?
Have unsubscribed.
Anyone?
Thank you.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: Jag on June 12, 2019, 23:44
Netflix yes. UHD with Dolby vision or HDR.
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: rock123 on June 12, 2019, 23:50
Netflix yes. UHD with Dolby vision or HDR.

Thanks Jag :)
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: Doggie Howser on June 13, 2019, 07:13
Netflix yes. UHD with Dolby vision or HDR.

Not quite. Only Netflix funded ones.

Titles like John Wick still only HD IIRC
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: tsammyc on June 13, 2019, 08:34
You also have to pay a higher subscription price for 4K/UHD
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on June 13, 2019, 11:44
Interesting:


https://youtu.be/YSZ-yFTSmfY

[/quot
Interesting:


https://youtu.be/YSZ-yFTSmfY


So we all know that the best pssible movie source will be playing from UHD player with UHD Disc . Because of the transfered for editing at a more cost effective manners we will not be able to view images in 4k or UHD as it intended . The end result is for most movies it will have a softer feel compare to planet earth II which likely uses 4k or UHD process thru out the whole production .
Title: Re: Down load 4k content vs 4k Dics do we still need true 4k device .
Post by: alf on August 13, 2019, 22:28
We want the best of what the equipment can do , irony if we stream or down load content it will not be the best right ?

There is new UHD out in our market like Sony x700 (Local )Amazon  LX 800 or LX 1000
 and Pioneer Lx 500 n Lx 800 ( local )