Disc Size and Bitrate per Title - Blu-ray Forum

PRO-630HD · 02-12-2016, 02:13 PM

I wanted to start a thread on this since technically these could be on a BD-50. Also bitrates technically can max out at 100 mbps but they could be much lower. I don't want to see titles at 40 mbps or even 60 for that matter. Owners could even post rough guesses as to what the Samsung player is showing per title.

Doctorossi · 02-12-2016, 03:53 PM

Quote:

Originally Posted by PRO-630HD

I don't want to see titles at 40 mbps or even 60 for that matter.

Whereas I want to see titles that don't display visible compression artifacts.

Horses for courses, I guess.

bruceames · 02-12-2016, 03:56 PM

Do they make UHD BD disc drives to hook up to a PC? That's about the only way we'll be able to get technical info on these.

PRO-630HD · 02-12-2016, 04:01 PM

Even the bitrate meter on the player gives you a general idea.

bruceames · 02-12-2016, 04:03 PM

Quote:

Originally Posted by PRO-630HD

Even the bitrate meter on the player gives you a general idea.

If the Sammy had one. I'll guess we'll have to wait until a player comes out that does...

PRO-630HD · 02-12-2016, 04:22 PM

Wow, I have never owned a player that didn't except for my Toshiba HDXA2 HDDVD player.

gkolb · 02-12-2016, 04:25 PM

Quote:

Originally Posted by bruceames.

Do they make UHD BD disc drives to hook up to a PC? That's about the only way we'll be able to get technical info on these.

The disc is still a Blu-ray. Other threads have stated that newer BD pc drives can read a 3 layer 100 gb disc. So if you have a newer drive, it just a matter of the software being able to read/decode the info on the UHD disc (it's still just a Blu-ray).

If the disc is 50 gb or 66 gb, should be no trouble reading the disc.

PRO-630HD · 02-12-2016, 05:32 PM

It appears the initial Fox titles are all dual layer. Whether they are 50gb or 66gb has yet to be seen. Also very odd fox didn't include the disc size and mbps as they always do for bluray titles.

applemac · 02-12-2016, 06:11 PM

Quote:

Originally Posted by gkolb

The disc is still a Blu-ray. Other threads have stated that newer BD pc drives can read a 3 layer 100 gb disc. So if you have a newer drive, it just a matter of the software being able to read/decode the info on the UHD disc (it's still just a Blu-ray).

If the disc is 50 gb or 66 gb, should be no trouble reading the disc.

I burn 100GB data discs with a few newer drives (newer being in the past couple of years, anything showing BD-XL on the logo). Hopefully software players will be able to handle UHD soon enough.

cybergrimes · 02-12-2016, 06:55 PM

If anyone's interested there's a discussion re: playing UHD discs on a PC over at AVS.

http://www.avsforum.com/forum/150-bl...t-request.html

Edit: Post #36 user Sam S indicates he tried The Martian in his BDXL drive but Windows 10 would not recognize it. He doesn't mention trying to load the disc through any software like VLC, though he might have tried AnyDVD. It's pretty much assumed nothing can decrypt/read it at the moment though.

dvdmike · 02-12-2016, 07:21 PM

As I have said before you won't see high GB dics for a very long time

pedromvu · 02-12-2016, 07:54 PM

Quote:

Originally Posted by PRO-630HD

I wanted to start a thread on this since technically these could be on a BD-50. Also bitrates technically can max out at 100 mbps but they could be much lower. I don't want to see titles at 40 mbps or even 60 for that matter. Owners could even post rough guesses as to what the Samsung player is showing per title.

Average blu-ray bitrates range from 20-30mbps, 20GB to 30GB video file size.

If UHD with their HEVC compression uses half the size as supposed that means average bitrates should be around 42.5-62.5mbps with the added 2.5mbps for HDR, which would need around 40GB to 60GB per video file size.

It seems to me 66GB disk is too small for a two hour movie if you take in account that it could take 60GB for video, plus the Audio channels and supplements.

dvdmike · 02-12-2016, 08:04 PM

Quote:

Originally Posted by pedromvu

Average blu-ray bitrates range from 20-30mbps, 20GB to 30GB video file size.

If UHD with their HEVC compression uses half the size as supposed that means average bitrates should be around 42.5-62.5mbps with the added 2.5mbps for HDR, which would need around 40GB to 60GB per video file size.

It seems to me 66GB disk is too small for a two hour movie if you take in account that it could take 60GB for video, plus the Audio channels and supplements.

No disc size is too small, they can compress the hell out of anything

tyrok · 02-12-2016, 08:12 PM

Quote:

Originally Posted by PRO-630HD

It appears the initial Fox titles are all dual layer. Whether they are 50gb or 66gb has yet to be seen. Also very odd fox didn't include the disc size and mbps as they always do for bluray titles.

This might explain why the Fox titles have no extras on the UHD except for commentaries.

MisterXDTV · 02-12-2016, 08:17 PM

Fox discs are all BD-66 according to French press release...

dvdmike · 02-12-2016, 08:22 PM

Quote:

Originally Posted by tyrok

This might explain why the Fox titles have no extras on the UHD except for commentaries.

It's won't just be fox

Geoff D · 02-12-2016, 08:30 PM

Yep, I keep saying it'll be the same as with 3D: most of the disc is given over to the main movie encode. If there's the occasional 4K-finished supplement then they'll put it on there, but other than that it'll be left to the 2D pack-in Blu-ray to provide the extras (again, just like 3D).

bruceames · 02-12-2016, 08:40 PM

Maybe that's partly why Fox didn't include Atmos tracks, because of space concerns? (and not wanting to compromise bit rate to make room for it). How many GB does an Atmos track use up on a 2 hour movie?

bruceames · 02-12-2016, 08:41 PM

Quote:

Originally Posted by Geoff D

Yep, I keep saying it'll be the same as with 3D: most of the disc is given over to the main movie encode. If there's the occasional 4K-finished supplement then they'll put it on there, but other than that it'll be left to the 2D pack-in Blu-ray to provide the extras (again, just like 3D).

I hope it stays that way (at least, until if/when they use 100gb discs).

pedromvu · 02-12-2016, 09:54 PM

So I guess we are back to how blu-ray started, I believe in the beginning movies uses to use lower bitrates and little to no supplements to fit in single layered 25GB discs, probably a thing about costs, but these days everyone seems to use dual layered blu-ray discs.

I doubt anyone would be doing 4K supplements though, unless they are for unused scenes, 2K is more than enough.

02-12-2016, 02:13 PM	#1
PRO-630HD Blu-ray Guru Member since:Oct 2009 Blu-ray reviews: 1	Disc Size and Bitrate per Title I wanted to start a thread on this since technically these could be on a BD-50. Also bitrates technically can max out at 100 mbps but they could be much lower. I don't want to see titles at 40 mbps or even 60 for that matter. Owners could even post rough guesses as to what the Samsung player is showing per title. Last edited by PRO-630HD; 02-12-2016 at 02:18 PM.

02-12-2016, 03:56 PM	#3
bruceames Blu-ray Knight Top contributor Member since:Nov 2012 Location:Novato, CA 4K collection:15 Blu-ray collection:1337 DVD collection:2 Trading Score:1	Do they make UHD BD disc drives to hook up to a PC? That's about the only way we'll be able to get technical info on these.

02-12-2016, 04:01 PM	#4
PRO-630HD Blu-ray Guru Member since:Oct 2009 Blu-ray reviews: 1	Even the bitrate meter on the player gives you a general idea.

02-12-2016, 04:22 PM	#6
PRO-630HD Blu-ray Guru Member since:Oct 2009 Blu-ray reviews: 1	Wow, I have never owned a player that didn't except for my Toshiba HDXA2 HDDVD player.

02-12-2016, 05:32 PM	#8
PRO-630HD Blu-ray Guru Member since:Oct 2009 Blu-ray reviews: 1	It appears the initial Fox titles are all dual layer. Whether they are 50gb or 66gb has yet to be seen. Also very odd fox didn't include the disc size and mbps as they always do for bluray titles.

02-12-2016, 06:55 PM	#10
cybergrimes Active Member Top contributor Member since:Sep 2014 Location:Colorado 4K collection:133 Blu-ray collection:796 DVD collection:255 Digital collection:528 iTunes collection:10 Trading Score:74	If anyone's interested there's a discussion re: playing UHD discs on a PC over at AVS. http://www.avsforum.com/forum/150-bl...t-request.html Edit: Post #36 user Sam S indicates he tried The Martian in his BDXL drive but Windows 10 would not recognize it. He doesn't mention trying to load the disc through any software like VLC, though he might have tried AnyDVD. It's pretty much assumed nothing can decrypt/read it at the moment though.

02-12-2016, 07:21 PM	#11
dvdmike Banned Member since:Jun 2010 Blu-ray collection:1069	As I have said before you won't see high GB dics for a very long time

02-12-2016, 08:17 PM	#15
MisterXDTV Blu-ray Samurai Member since:Jul 2008	Fox discs are all BD-66 according to French press release...

02-12-2016, 08:30 PM	#17
Geoff D Blu-ray Emperor Top contributor Member since:Feb 2009 Location:Swanage, Engerland 4K collection:1348 Blu-ray collection:2525 Blu-ray reviews: 6 Trading Score:33	Yep, I keep saying it'll be the same as with 3D: most of the disc is given over to the main movie encode. If there's the occasional 4K-finished supplement then they'll put it on there, but other than that it'll be left to the 2D pack-in Blu-ray to provide the extras (again, just like 3D).

02-12-2016, 08:40 PM	#18
bruceames Blu-ray Knight Top contributor Member since:Nov 2012 Location:Novato, CA 4K collection:15 Blu-ray collection:1337 DVD collection:2 Trading Score:1	Maybe that's partly why Fox didn't include Atmos tracks, because of space concerns? (and not wanting to compromise bit rate to make room for it). How many GB does an Atmos track use up on a 2 hour movie?

02-12-2016, 09:54 PM	#20
pedromvu Blu-ray Guru Member since:Nov 2010 Location:Mexico 4K collection:146 Blu-ray collection:1222 DVD collection:35 MA collection:8 Digital collection:12 iTunes collection:12 Trading Score:52	So I guess we are back to how blu-ray started, I believe in the beginning movies uses to use lower bitrates and little to no supplements to fit in single layered 25GB discs, probably a thing about costs, but these days everyone seems to use dual layered blu-ray discs. I doubt anyone would be doing 4K supplements though, unless they are for unused scenes, 2K is more than enough.

Best 4K Blu-ray Deals