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3D Blu-Ray and Blu-Ray discs
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Deacon1972
30-01-2012
Originally Posted by njp:
“The thing is, if you've created your 3D version natively (everything done with a 3D camera), then there is no "correct" 2D viewpoint, unless you create it in post-production, or perhaps use an even more complicated camera with an extra lens in the middle (is there such a thing?).

So now I'm wondering if all the films with a separate 2D version are ones where the 3D version was created in post-production. That means you get the definitive 2D version on one disc, plus the bastardised 3D-only version on a separate disc. It makes sense.

Perhaps somebody less lazy than me could check...”

Found a list of post production 3D and native 3D, just need to find out which ones have separate 2D discs.


http://www.google.co.uk/url?sa=t&rct...ptgYtw&cad=rja

Edit

Avatar 3D is native 3D comes on one disc and plays in a 2D player.

Tron is native 3D and does not play in a 2D player but comes with 2D disc.

Lion King is post production 3D and will play in 2D, it also comes with 2D disc.

Back to the drawing board.
njp
30-01-2012
Originally Posted by Deacon1972:
“Back to the drawing board. ”

D'oh!
porkpie
30-01-2012
Originally Posted by njp:
“Yes, they are.


No, you won't.


Nobody is.”



Bluray 3D discs that only carry the 3D version DO NOT( usually) play as 2D on a 2D setup.
I have a PS3 which is 3D and a Bluray player that is not.
Putting the 3D disc in the Bluray player results in a disc generated message informing you that your player is not compatible.

Put the 3D disc in the PS3 and connect it to a non 3D tv leads to the same thing.
SO please desist in posting crap like you did in the other thread.
porkpie
30-01-2012
Originally Posted by njp:
“That's interesting. The Blu-ray 3D specification was designed to be backwards compatible with 2D players; the MVC codec is an extension to the AVC codec supported by all players. So they must have deliberately crippled the disc to make it behave that way.”

SO now that you've been corrected please stop trying to make it sound as if you know what you are talking about when you don't.

The forum member you replied to (and I) clearly have experience with the relevant setups and you don't .

Can't believe you came out with your smartarse remark to me when you don't actually have any experience.
porkpie
30-01-2012
Originally Posted by njp:
“Not really. That made the PS3 able to process 3D. It should still have been able to play 3D discs in 2D mode, even before the update.
”


Not only did the PS3 require an update to enable it for 3D , no other player on the market was able to be updated for 3D , even Profile 2 players.


I'm sure if there is space on one disc to fit 2D and 3D on the same disc they would , but in the meantime discs that only have the 3D version do not play on non 3D setups

Now that you've been found out and we know you based your comments on old or inaccurate information don't you think you owe someone an apology.

You are not alone in dishing out inaccurate info .
The section on Amazon that deals with 3D claims that 3D discs will play on a 2D setup - and we know they don't - not many of them anyway
Deacon1972
30-01-2012
Originally Posted by porkpie:
“
Bluray 3D discs that only carry the 3D version DO NOT play as 2D on a 2D setup.”

Yes they do, I gave a few examples on the other page......

.Avatar, Resident Evil Afterlife, Cloudy with a chance of Meatballs, Piranha, Open Season, Monster House, Ice Age.


The question being asked is....

Why don't the 3D releases that have 3D + Bluray play in a normal Bluray player.

We now the reason why, basically because the 2D version would look significantly different from the 3D version when data is taken from one eye. What we want to know is, why/how does it look different.
porkpie
30-01-2012
Originally Posted by Deacon1972:
“Yes they do, I gave a few examples on the other page......

.Avatar, Resident Evil Afterlife, Cloudy with a chance of Meatballs, Piranha, Open Season, Monster House, Ice Age.


The question being asked is....

Why don't the 3D releases that have 3D + Bluray play in a normal Bluray player.

We now the reason why, basically because the 2D version would look significantly different from the 3D version when data is taken from one eye. What we want to know is, why/how does it look different.”

Beats me.
But I've not got a single 3D Bluray that does not have a separate 2D disc.
njp
30-01-2012
Originally Posted by porkpie:
“Bluray 3D discs that only carry the 3D version DO NOT( usually) play as 2D on a 2D setup.”

On the contrary, the only time they won't is when they have been deliberately authored so as to prevent it. The 3D specification itself is backwards compatible with 2D-only players, by design.

Quote:
“I have a PS3 which is 3D and a Bluray player that is not.
Putting the 3D disc in the Bluray player results in a disc generated message informing you that your player is not compatible.”

Only because they have been authored that way.

Quote:
“SO please desist in posting crap like you did in the other thread.”

Ah, yes. The thread where you told everyone (accompanied by much rolling of eyes) that index marks could not be added to commercial VHS recordings, I said that I could see no technical reason why they couldn't, and then somebody went and proved you wrong and me right by actually doing it. That crap.

Originally Posted by porkpie:
“SO now that you've been corrected please stop trying to make it sound as if you know what you are talking about when you don't.”

And yet somehow it always turns out that I do know what I'm talking about, and you don't.

Quote:
“Can't believe you came out with your smartarse remark to me when you don't actually have any experience.”

And yet here I am with a collection of index-mark capable VHS VCRs, a 3D Blu-ray setup and a collection of 3D Blu-ray discs (all of which will play in 2D or 3D), along with the ability to read published standards. But I'm supposed to defer to your wrongness?

Originally Posted by porkpie:
“Not only did the PS3 require an update to enable it for 3D , no other player on the market was able to be updated for 3D , even Profile 2 players.”

Completely irrelevant.

Quote:
“I'm sure if there is space on one disc to fit 2D and 3D on the same disc they would , but in the meantime discs that only have the 3D version do not play on non 3D setups”

Of course there is space! The 2D data is a subset of the 3D data, unless you a) have a different 2D version than the one-eye version that would be derived from the 3D version, or b) you have a higher bitrate 2D version than the 3D version allows. Nobody has yet been able to produce an example of (b), but that is certainly technically possible.

Quote:
“Now that you've been found out and we know you based your comments on old or inaccurate information don't you think you owe someone an apology.”

Neither old nor inaccurate. The standard is the standard. However, I think most of us will have learned something from this thread. But not you.

Originally Posted by porkpie:
“Beats me.
But I've not got a single 3D Bluray that does not have a separate 2D disc.”

Whereas all of mine will play in either 3D or 2D, and do not include a separate disc.
porkpie
30-01-2012
How strange that the only irrelevant comment is the one that you can't argue with.
Your smartarse reply to my earlier post was proven to be 100% wrong but you don't have the balls to admit it.

I've been with Bluray since 2007 and at no time was it suggested that 3D Blurays would play on any standard player, ever.
It was widely reported that when 3D launched the only player that could be updated was the PS3.
Clearly not irrelevant if your "theory" that all 3D discs were backwards compatible which might have been the intention but clearly hasn't
There are more 3D Blurays that have separate discs than don't
Clearly manufacturers and studios are producing content without sticking rigidly to official specs - rather like VCR indexing.

And my personal experience of indexing systems on VCR's 25 years ago beats your hearsay anyday.
njp
30-01-2012
Originally Posted by porkpie:
“How strange that the only irrelevant comment is the one that you can't argue with.”

That the PS3 was the only Blu-ray player that could be firmware updated to play 3D? I can't argue with it, because it's true. I know, because I have a PS3. And it's also completely irrelevant, since we are talking about the ability of 2D players to play 3D discs in 2D.

Quote:
“Your smartarse reply to my earlier post was proven to be 100% wrong but you don't have the balls to admit it.”

Nothing to admit. You have a knack of being wrong.

Quote:
“I've been with Bluray since 2007 and at no time was it suggested that 3D Blurays would play on any standard player, ever.”

The 3D Blu-ray standard (I know how much you like standards) was not finalised until December 2009, at which time the Blu-ray Disc Association made it very clear that it would be backwards compatible with 2D players. Try paying attention.

Quote:
“It was widely reported that when 3D launched the only player that could be updated was the PS3.
Clearly not irrelevant if your "theory" that all 3D discs were backwards compatible which might have been the intention but clearly hasn't”

Updated to deliver 3D content to a 3D display! That has nothing to do with 2D compatibility.

Quote:
“And my personal experience of indexing systems on VCR's 25 years ago beats your hearsay anyday.”

So as well as pretending to know how VISS works, you are now accusing the forum member who did the tests that confirmed I was right and you were wrong of lying?

I don't recall you ever using your pretend technical knowledge to explain why you thought it wouldn't work. The other thread is still open, so why don't you go back there and tell us? And while you're there, you can accuse "soundbox" of lying.
porkpie
30-01-2012
Originally Posted by njp:
“That the PS3 was the only Blu-ray player that could be firmware updated to play 3D? I can't argue with it, because it's true. I know, because I have a PS3. And it's also completely irrelevant, since we are talking about the ability of 2D players to play 3D discs.

Nothing to admit. You have a knack of being wrong.

The 3D Blu-ray standard (I know how much you like standards) was not finalised until December 2009, at which time the Blu-ray Disc Association made it very clear that it would be backwards compatible with 2D players. Try paying attention.

Updated to deliver 3D content to a 3D display! That has nothing to do with 2D compatibility.

So as well as pretending to know how VISS works, you are now accusing the forum member who did the tests that confirmed I was right and you were wrong of lying?

I don't recall you ever using your pretend technical knowledge to explain why you thought it wouldn't work. The other thread is still open, so why don't you go back there and tell us? And while you're there, you can accuse "soundbox" of lying.”

So when you corrected me after I said that 3D discs would not play on 2D displays and then someone else confirmed it that makes me wrong does it?

Even if I'd added the word "some" to the statement you would have still come back again as the usual knowall that knows nothing.

Strange that you knew the PS3 needed an update for 3D, knew that no other players could be updated for 3D but still thought that all 3D discs were backwards compatible which is what you were saying in your smartarse reply - and you were wrong.. as usual.

As for your notes that 3D Blurays should be backwards compatible according to the Bluray Association - who cares.
We know they are not . You thought you were right simply because their original specs called for it.
But some discs aren't .
You need to listen.

I'm not calling Soundbox a liar , I'm saying that not all index systems were compatible.
I was there - I used them when they were first around so I know .
The findings of the other forum member ( not soundbox) dealt with VHS recorders that came about more than a decade after the systems were introduced and with most major manufacturers badging far eastern imports I conceded that it was likely that by the time VHS was on the way out that some kind of standard was in use.
Which it wasn't in the late 80's.

Soundbox confirmed that some index systems were compatible.
My actual use of the equipment in question at the time showed that index systems were not all compatible.

I'm guessing that you are using JVC's spec for indexing as your source which is as relevant to the formats in real use as your source of the BDA specs for 3D backwards compatibility.

Both were designed for general use but neither came to pass.
I base my views on over 30 years of working with home cinema equipment rather than Wikipedia
njp
30-01-2012
Originally Posted by porkpie:
“As for your notes that 3D Blurays should be backwards compatible according to the Bluray Association - who cares.
We know they are not . You thought you were right simply because their original specs called for it.
But some discs aren't .
You need to listen.”

And you need to get a clue. The 2D mode can be deliberately disabled as part of the disc authoring process, just as you can stop people skipping sections of a disc. None of this affects the underlying 3D specification, which remains backwards compatible with 2D players.

Some of us are trying to understand exactly why some films have separate 2D presentations - a task which is in no way aided by your continued display of ignorance of the subject.
porkpie
31-01-2012
Originally Posted by njp:
“And you need to get a clue. The 2D mode can be deliberately disabled as part of the disc authoring process, just as you can stop people skipping sections of a disc. None of this affects the underlying 3D specification, which remains backwards compatible with 2D players.

Some of us are trying to understand exactly why some films have separate 2D presentations - a task which is in no way aided by your continued display of ignorance of the subject.”

Ignorant?

I'm not the one who claimed that all 3D Blurays were compatible with 2D playback.

YOU did that .
YOU were wrong.

SO who's ignorant of the subject?

We all are to a degree but why do you insist on trying to make yourself sound clever when you are as clueless about it as anyone else.

SO yes go ahead and try and move the subject to a different area now that you've been found out.
You are as ignorant as the next man on the subject.
Why not try Wikipedia again as real experience does not seem to be your strong point.

Who gives a shit about the spec ? Clearly studios are not sticking to it.
By all means move on and find out why but its not important why
. The fact is that what you said was wrong.
A question was asked about compatibility and you answered it incorrectly. Have the balls to admit it .
njp
31-01-2012
Originally Posted by porkpie:
“Ignorant?”

Ah, good. The rolling eyes are back. Always a useful substitute for actually knowing anything.

Here is a prime example of your ignorance, deployed in your very first post to this thread:

Originally Posted by porkpie:
“3D Bluray discs are not playable on non 3D players.”

You were given the titles of a number of 3D discs which are playable in 2D players, thus immediately falsifying your claim. You've been told about the MVC codec that is used to encode 3D on Blu-ray discs, and it has been explained to you that this is inherently backwards compatible with the AVC codec used on 2D Blu-ray discs. You have been pointed in the direction of the statement by the people who define the Blu-ray standard that 3D discs are backwards compatible with 2D players.

The new (to me) information in this thread is that some content providers choose not to let people play back 2D from the 3D disc, despite this being technically possible.

Having learned this, I (and others) wondered why they might have done that. We arrived at two possible reasons. I've since discovered a third. It would be a waste of time telling you about it.
porkpie
31-01-2012
Originally Posted by porkpie:
“3D Bluray discs are not playable on non 3D players.
And if your tv is not 3D either you'll be lucky to get to the menu.

I”

Originally Posted by njp:
“Yes, they are.


No, you won't.


.”

Originally Posted by njp:
“Here is a prime example of your ignorance, deployed in your very first post to this thread:


”

You must have forgotten that your first post in the thread was also wrong but how unsurprising that you still want to continue the fantasy and try and pretend you know what you are talking about.
Nice to see that you've correctly labelled yourself as "ignorant" - something we all knew already
Your first post was no more correct than mine.
And the information being new to you changes what ?
It doesn't change the fact that your post was wrong
And equally you were given plenty of examples of discs that falsified your claim.
A simple browse through Blurays would have done that
But you still can't admit you were wrong too

No knowledge aswell as no balls.

You think just because the specs say something thats the end of it ?
Are you a puppet ?

The specs may say it but you have plenty of references to show that the specs are not being followed - same with the VCR indexing .

As I've said before - I go from actual experience rather than Wikipedia or spec sheets as using the gear is usually better than your guesswork
porkpie
31-01-2012
At any rate , lets move on .
Both our posts were wrong and that should be the end of it.
XxBlaKOuTZxX
01-02-2012
Right so we've found out that some 3D BD CANT play in a non 3D BD player and some can. I dont have many 3D BD as i've not had my set-up that long. Although I do try and purchase BD packs that have both 3D and 2D versions as I like to watch the 2D version on my laptop while i'm travelling to and from London.
porkpie
01-02-2012
Originally Posted by XxBlaKOuTZxX:
“Right so we've found out that some 3D BD CANT play in a non 3D BD player and some can. I dont have many 3D BD as i've not had my set-up that long. Although I do try and purchase BD packs that have both 3D and 2D versions as I like to watch the 2D version on my laptop while i'm travelling to and from London.”

It should be safe to assume that the only releases that don't supply the 3D version on a separate disc are the ones where the 3D version WILL play on a 2D setup .
So if you buy any 3D release you should never be unable to watch it in 2D either from a separate disc or a single one
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