Video or RGB?

[Whitespliff]

Hello,

I searched the forum a bit but didn't find a related topic.
So, I have a question.

I bought myself a new 16/9 TV (Samsung) wich has 2 scarts, 1 is RGB.
I've noticed that when I play DVD's using the Video output the picture seems to flicker (goes brighter and darker). When there is a dark scene & then a light(er) one it looks bad.

If I use RGB the picture is (much) better (no more flickering).
So far so good but when I see 4/3 DVD's (Star Trek boxes) I can select the zoom function but this doesn't do anything.
Samsung has a zoom function called Panorama, what it does is: it takes the 4/3 picture and like in 16/9 mode the screen is filled. The left & right side off the screen however are a little bended. It's like looking trough a lens. By doing this the center (where ussually the action is) looks ok.
There are other zooms but they only strech the picture verticaly.

Is it normal you can't select zoom funtions in RGB & what are the + or - points of RGB?

Thx for any responses.

[PimpInDaHouse]

In a 4:3 DVD you souldn't want it to be 16:9 it will mess up the picture. What you want is to keep it 4:3 with the black boarders all the way around the picture. And I think RGB means Red, Green, and Blue like the pixels on a TV and I don't think that is your problem. This is just a guess because I don't have a 16:9 TV but my friends getting one on Friday.

[Whitespliff]

When I use video output on my DVD the aspect is correct, but when I use RGB I can only choose 16/9 or the zoom functions of the TV (but then I loose the top & bottom of the picture).

Tnx anyway

Is there somebody who knows the difference between Video & RGB (why is the picture better in RGB for ex.).

[PimpInDaHouse]

Maybe I don't understand what you are saying what do you mean by video or RGB. If you are talking about the cables a regular video cord (the red, white, and yellow cord) and a component (the red, green, and blue wires) component will give you a better picture because it puts the colors on the screen the way they should be making the picture sharper and more vivid. But then again you could be talking about something completely different. And like I was trying to say earlier if you make a 4:3 try to fit the full screen of a 16:9 TV you are streatching the picture out causing the video to distort and makes it look bad. And if you are talking about component cords then I think it would make the picture the way it is suppose to be a picture with black boarders all the way around the picture. I hope this helps but if this has no meaning to what you asked I'm sorry and better luck to you finding the answer.

[Whitespliff]

I use 1 cable: a 21 pin scart.
On my DVD I can choose the output signal: Video, RGB and YUV (this gives me green picture).

Actually it doesn't matter because I can't choose 4/3 in RGB, I always end up with a horizontal stretched picture.

I am curious what the difference is between Video & RGB.
Does anybody know a link where this is explained.

Tnx

[Lord Gaiyan]

Ok, just a short explanation of video formats.

RF: Worst quality. Contains Audio and Video on one coax cable.

Composite: Very common. Composite video is a single video signal that is a composite of the black and white information (Y) and the colour information (C). This is the yellow RCA jack found in all VCRs and DVD players.

S-Video: This one keeps the black and white (Y) signal separate from the color signal (C) resulting in a crisper and clearer picture than composite.

Component: This is sometimes mistaken as RGB. It is not to be confused with RGB. It has 3 signals, Y/Pb/Pr. The Y component of this signal is the black and white information contained within the original RGB signal. The Pb and Pr signals are colour difference signals, which are mathematically derived from the original RGB signal. This is the best format to display DVDs in as the DVDs digital signal is natively component.

RGB: Common in Europe. This is the best quality but not as good as Component for DVD for the reasons above. RGB stands for Red, Green, and Blue. The entire colour spectrum can be represented by varying intensities of these three colours. The downside to RGB is that it requires a high bandwidth and the colour and the black and white picture information are combined within the RGB signal.

Hope this helps.

Joshua.

[PimpInDaHouse]

At least I was right about the Red, Green, and Blue.

[Whitespliff]

Hehe, thanks for the explanations!!