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    Invelos Forums->General: General Home Theater Discussion Page: 1 2  Previous   Next
How to tell if a 1.85 ratio dvd/blu-ray is 1.78 ratio on a HDTV?
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DVD Profiler Unlimited RegistrantStar ContributorCubbyUps
Registered: March 14, 2007
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Just wondering how to really tell if a 1.85 ratio dvd/blu-ray is actually 1.78 ratio on a HDTV.

For example I was recently watching Airplane II and it completely fills up my screen.
But on other 1.85 anamorphic ratio dvds, such as The Adventures of Rocky & Bullwinkle there is are very small black bars on the top & bottom.

Does this mean that Airplane II is actually 1.78 instead of 1.85 and would just stating that it fills up my screen be good enough to change the aspect ratio of similar dvds/blu-rays?
DVD Profiler Unlimited RegistrantStar ContributorNexus the Sixth
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Quoting CubbyUps:
Quote:
Just wondering how to really tell if a 1.85 ratio dvd/blu-ray is actually 1.78 ratio on a HDTV.

For example I was recently watching Airplane II and it completely fills up my screen.
But on other 1.85 anamorphic ratio dvds, such as The Adventures of Rocky & Bullwinkle there is are very small black bars on the top & bottom.

Does this mean that Airplane II is actually 1.78 instead of 1.85 and would just stating that it fills up my screen be good enough to change the aspect ratio of similar dvds/blu-rays?


Yes. I've found in the past that most 1.85:1 Paramount titles are actually 1.78:1.
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DVD Profiler Unlimited RegistrantStar ContributorThe Movieman
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Quoting KinoNiki:
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Quoting CubbyUps:
Quote:
Just wondering how to really tell if a 1.85 ratio dvd/blu-ray is actually 1.78 ratio on a HDTV.

For example I was recently watching Airplane II and it completely fills up my screen.
But on other 1.85 anamorphic ratio dvds, such as The Adventures of Rocky & Bullwinkle there is are very small black bars on the top & bottom.

Does this mean that Airplane II is actually 1.78 instead of 1.85 and would just stating that it fills up my screen be good enough to change the aspect ratio of similar dvds/blu-rays?


Yes. I've found in the past that most 1.85:1 Paramount titles are actually 1.78:1.


Yep, and Warner Brothers as well.
DVD Profiler Unlimited RegistrantStar Contributorwidescreenforever
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better still  those movies in the theatres on film are 1.85  but transferred to dvd playback most of the time are then squeezed down to 1.78 for 16 x 9 tv's .. I always find the best way to see this since your TV set will over compensate for the small black area to be removed or resize .. is to use a program on your PC such as Powerdvd ( what I use)  .. here you will actually see the 1.85 if it is really 1.85 small black bars top and bottom.,
when that same disc is played back on your widescreen TV the image 'appears'  to be 1.78 ..


I know of No theatrical movies ever been released in 1.78  ( but have heard of a few (mostly Disney) 1.75  and 1.77 films but very rarely) ..

If the dvd playback is really 1.78 .    Powerdvd will show No bars at all ......
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 Last edited: by widescreenforever
DVD Profiler Unlimited RegistrantStar ContributorMithi
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Quoting CubbyUps:
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Just wondering how to really tell if a 1.85 ratio dvd/blu-ray is actually 1.78 ratio on a HDTV.

Depends on your HDTV. I can set mine to "Overscan = 0" for HDMI-connections, so if there are no black bars visible there simply are none, ergo the ratio is 1.78:1.

cya, Mithi
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DVD Profiler Unlimited RegistrantStar Contributordee1959jay
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Mithi is right. Most HDTVs' standard settings involve some sort of overscan, which cuts off a bit from each side of the screen. By switching this off and displaying a pixel for pixel image you can see which is which.
DVD Profiler Unlimited RegistrantStar Contributorwidescreenforever
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But you also have to keep in mind that most of /all of ? the HDTV's  from the assembly line are preprogrammed and most people will see that these default settings are pretty much are in line of it all set up ( exept for input settings and maybe your clock)  and would never go into these  advanced settings ..

and on top of that with a fair amount of others who love that zoom button will never see the true measurments of what their screen is actually displaying anyway ..  My scenario of the powerdvd on your pc is much more in line of what people can and will find faster when profiling a dvd for editing .......
In the 60's, People took Acid to make the world Weird. Now the World is weird and People take Prozac to make it Normal.

Terry
 Last edited: by widescreenforever
DVD Profiler Unlimited RegistrantStar Contributordee1959jay
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You're right about that one.
DVD Profiler Unlimited RegistrantStar ContributorAce_of_Sevens
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Quoting dee1959jay:
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Mithi is right. Most HDTVs' standard settings involve some sort of overscan, which cuts off a bit from each side of the screen. By switching this off and displaying a pixel for pixel image you can see which is which.

Are you sure? I've dealt with a lot of TVs and never seen a flat panel that had overscan by default. They'll usually have an option to do it, but not always.
DVD Profiler Unlimited RegistrantStar ContributorLewis_Prothero
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Quoting Ace_of_Sevens:
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Quoting dee1959jay:
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Mithi is right. Most HDTVs' standard settings involve some sort of overscan, which cuts off a bit from each side of the screen. By switching this off and displaying a pixel for pixel image you can see which is which.

Are you sure? I've dealt with a lot of TVs and never seen a flat panel that had overscan by default. They'll usually have an option to do it, but not always.

Panasonic Viera has overscan switched on by default, which is disturbing if you connect it to a HTPC.
It all seems so stupid, it makes me want to give up!
But why should I give up, when it all seems so stupid?


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 Last edited: by Lewis_Prothero
DVD Profiler Unlimited RegistrantStar Contributordee1959jay
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Quoting Ace_of_Sevens:
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Quoting dee1959jay:
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Mithi is right. Most HDTVs' standard settings involve some sort of overscan, which cuts off a bit from each side of the screen. By switching this off and displaying a pixel for pixel image you can see which is which.

Are you sure? I've dealt with a lot of TVs and never seen a flat panel that had overscan by default. They'll usually have an option to do it, but not always.


Yes, I'm sure. At least here in Europe many TVs have their default settings set to be able to deal with non-HDMI and/or SD signals, which if displayed on a pixel-by-pixel basis would cover just a small part of the screen. Many auto-stretch settings (which I personally don't like at all) involve some sort of overscan by default as well.

Now personally I always leave overscan off, because I want to see the entire image, but that's just me.
DVD Profiler Unlimited RegistrantStar ContributorNexus the Sixth
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Both my Samsung LCDs are set to overscan by default, even on the digital inputs. 

I turn it off of course, but sometimes the TV "forgets" the setting which is very annoying to discover when you're halfway through a film.
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 Last edited: by Nexus the Sixth
DVD Profiler Desktop and Mobile RegistrantStar Contributormreeder50
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I finally got in the habit of; as soon as I hit play, I pause and check that it's off. Mine also forgets sometimes. When it comes to 3D, I have to check before I hit play.
Marty - Registered July 10, 2004, User since 2002.
DVD Profiler Unlimited RegistrantStar Contributordee1959jay
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DVD Profiler Unlimited Registrantnuoyaxin
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My Sharp had it switched on by default (Asia). I never actually looked for a setting for this, but now knowing there should/could be one I will have a look at the manual. Thanks guys.
Achim [諾亞信; Ya-Shin//Nuo], a German in Taiwan.
Registered: May 29, 2000 (at InterVocative)
DVD Profiler Unlimited RegistrantFloorwalker
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Quoting dee1959jay:
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Overscan and why all TVs do it


Great article.  Thanks for the link!
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