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How Do You Tell If the disk is anamorphic? (not what you think)
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I don't understand how PowerDVD would be able to check if it's not playing the DVD. Where would it get its information otherwise? I know that if you're playing a DVD, you can go to "Configuration" and go to the "Information" tab and it'll state whether the aspect ratio is 16x9 (anamorphic) or 4:3 (nonanamorphic).
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The OUT (also an aspect ratio of 2.35:1) will look normal/unstretched like this:
Hyde: Fezzy, man, it's Star Wars.
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About the dimensions. A movie with an aspect ratio of 4:3 (fullscreen) will use the entire image and won't have black bars (and can't be anamorphic). A movie with an aspect ratio of 16:9 can be non-anamorphic (not strectched, black bars) or anamorphic (vertically stretched, no black bars). A movie with an aspect ratio of 2.35:1 can be non-anamorphic (not vertically strectched, big black bars, see picture 1) or anamorphic (vertically stretched, smaller black bars, see picture 2). As you can see in the anamorphic image more space is used for the actual picture because it's vertically strectched (won't be vertically stretched on playback ofcourse) and less for the black bars -> better image quality.
Picture 1.
Picture 2.
Hyde: Fezzy, man, it's Star Wars.
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On the disk in question, when I open with PowerDVD and check the configuration tool, the video information shows this information. Is it enough to get the answer? :
Video Attributes:
Video compression mode: MPEG-2
TV system: 525/60 (NTSC)
Aspect Ratio: 16:9
Display Mode: Only Letterbox
Source picture resolution: 720x480 (525/60)
Frame Rate: 30.00
Source picture letterboxed: Not letterboxed
Bitrate: 4.13Mbps
Thank you for your help.
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So the image will only look stretched in the anamorphic when the picture is froze while in ifoedit right?
Also during playback in ifoedit.
There's a difference between the aspect ratio of the image and the movie within the image. Sometimes the entire image is used, sometimes there are black bars. When there are black bars the aspect ratio of the image is different from the movie.
A TV can have a display of 4:3 or 16:9. A movie can have an aspect ratio of 4:3 (=1.33:1=fullscreen) to 2.35:1 (widescreen) and anything in between like 16:9 (=1.78:1) or sometimes 1.66:1 or 2.40:1.
If you play a 16:9 movie on a 4:3 tv there are black bars. If you play a 16:9 movie on a 16:9 tv there are no black bars.
If you play a 2.35:1 movie on a 4:3 tv there a big black bars. If you play a 2.35:1 movie on a 16:9 tv there are smaller black bars (I'm talking about the black bars on top and under the picture here, not on the side).
If a movie has black bars we call it letterboxed.
On the disk in question, when I open with PowerDVD and check the configuration tool, the video information shows this information. Is it enough to get the answer? :
Video Attributes:
Video compression mode: MPEG-2
TV system: 525/60 (NTSC)
Aspect Ratio: 16:9
Display Mode: Only Letterbox
Source picture resolution: 720x480 (525/60)
Frame Rate: 30.00
Source picture letterboxed: Not letterboxed
Bitrate: 4.13Mbps
Also during playback in ifoedit.
The picture will appear normal (though less black bars at the top and bottom of the screen) during regular playback correct?
Yes (unless in the setup of your dvd player you select 16:9 when you have a 4:3 TV, then it will look like picture 2 in the previous post).
On some discs you can use it, it depends on the copy protection.
There is a difference between 16:9 and 2:35:1? Your above post seems to indicate that, but I thought there was only 4:3 and 16:9 and 2:35:1 was just another name for 16:9.
Yes (unless in the setup of your dvd player you select 16:9 when you have a 4:3 TV, then it will look like picture 2 in the previous post).
And ifoedit can only be used when the movie is on your HD and not burned to disk right?
On some discs you can use it, it depends on the copy protection.
There is a difference between 16:9 and 2:35:1? Your above post seems to indicate that, but I thought there was only 4:3 and 16:9 and 2:35:1 was just another name for 16:9.
There's a difference between the aspect ratio of the image and the movie within the image. Sometimes the entire image is used, sometimes there are black bars. When there are black bars the aspect ratio of the image is different from the movie.
A TV can have a display of 4:3 or 16:9. A movie can have an aspect ratio of 4:3 (=1.33:1=fullscreen) to 2.35:1 (widescreen) and anything in between like 16:9 (=1.78:1) or sometimes 1.66:1 or 2.40:1.
If you play a 16:9 movie on a 4:3 tv there are black bars. If you play a 16:9 movie on a 16:9 tv there are no black bars.
If you play a 2.35:1 movie on a 4:3 tv there a big black bars. If you play a 2.35:1 movie on a 16:9 tv there are smaller black bars (I'm talking about the black bars on top and under the picture here, not on the side).
If a movie has black bars we call it letterboxed.
On the disk in question, when I open with PowerDVD and check the configuration tool, the video information shows this information. Is it enough to get the answer? :
Video Attributes:
Video compression mode: MPEG-2
TV system: 525/60 (NTSC)
Aspect Ratio: 16:9
Display Mode: Only Letterbox
Source picture resolution: 720x480 (525/60)
Frame Rate: 30.00
Source picture letterboxed: Not letterboxed
Bitrate: 4.13Mbps
Do you want to know if the dvd is anamorphic or do you also want to know the aspect ratio of the movie?
The aspect ratio of the image is 16:9 so it must be anamorphic (it uses all the vertical resolution, it is 16:9, so the image will be vertically stretched).
I'm not sure about the letterbox thing.
What does the it say on the box of the movie in question?
Hyde: Fezzy, man, it's Star Wars.
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Anyway, the outer box says it's widescreen and letterbox 2:35:1 ratio, but if you've followed my other thread, that may or may not be accurate. The box also says a bunch of trailers and interviews are present, and I don't think they are....I'll try it in ifoedit and see if it stretches. So if the image with bars is letterbox, and anamorphic removes the bars, do you still call it letterbox? Is that why the info in configuration states "not letterboxed"?
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Maybe this will help.
Hyde: Fezzy, man, it's Star Wars.
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Originally posted by: THX-1977
How can you tell if the dimensions "look" 4:3 or 16:9? What exactly are you looking for?
How can you tell if the dimensions "look" 4:3 or 16:9? What exactly are you looking for?
You'll get used to it with practice, but essentially it's all about recognising the basic geometry of the shape.
4 units wide by 3 units tall is not as wide as 16 units wide by 9 units tall.
Or, you can divide the width by the height and get the numerical ratio:
1.33 is not as big (read: wide) as 1.78.
Here are two images with the same height, but different width.
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Originally posted by: THX-1977
Wow, I didn't think it was possible to be more confused than I was, but I was wrong.
Anyway, the outer box says it's widescreen and letterbox 2:35:1 ratio
Wow, I didn't think it was possible to be more confused than I was, but I was wrong.
Anyway, the outer box says it's widescreen and letterbox 2:35:1 ratio
The 2.35 confuses the issue futher. The anamorphic image continues to be letterboxed, because the actual film was wider than 16x9. 2.35's fractional equivalent is 47x20. Of course, displays are not made in this aspect ratio, so the image is matted and reduced to fit either the anamorphic 16x9 or "full screen" 4x3 displays. There is less letterboxing to make a 16:9 image anamorphic than is required to make a 4:3 image anamorphic, but the end result on a 4:3 display is the same. The desire for anamorphic encoding is to ensure the maximum resolution for a 16x9 display is offered.
If such a 47x20 display did exist, it would look like this (again, for comparison's sake, I've kept the same height of 480):
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On a computer screen (especially high resolution lcd/tft) you can see the difference very well.
Hyde: Fezzy, man, it's Star Wars.