DVDs are they...i or p

[conjur]

Per the DVD FAQ

It's 480i, folks...the players (or the outboard devices or TV or whatever) do the 3:2 pulldown.

 

[technogeeky]

Originally posted by: LethalWolfe

But what is the point to go from i-p 'cause you aren't gaining any new lines of res, you are just doubling the current lines. Storing as p w/a flag to show as i makes more sense than storing as i and flagging for p. But do DVDs predate the whole consumer i/p thing? If so wouldn't older DVDs be i sense there was no such thing as p at the consumer level?


Lethal

Line doubling is an increase in visual quality. Instead of two half-res images being displayed every 1/60th second, one image is displayed every 1/30th of a second.

 

[LethalWolfe]

Originally posted by: technogeeky

Originally posted by: LethalWolfe

But what is the point to go from i-p 'cause you aren't gaining any new lines of res, you are just doubling the current lines. Storing as p w/a flag to show as i makes more sense than storing as i and flagging for p. But do DVDs predate the whole consumer i/p thing? If so wouldn't older DVDs be i sense there was no such thing as p at the consumer level?


Lethal

Line doubling is an increase in visual quality. Instead of two half-res images being displayed every 1/60th second, one image is displayed every 1/30th of a second.

Hmm, I guess I'm using the wrong terminology. What I ment was that by converting interlaced footage to prog footage you aren't gaining (or aren't gaining much) visual quality because you are taking a half-res image and "doubling" it into full res image. For exmaple, If you had 2 versions of the same DVD (one in i, the other in p) and played them in prog players going into prog TVs then the p version of the DVD would look better than the i version of the DVD since the p version really is a "full" screen image where the i version is a "half" screen image "doubled-up" to display as a full screen image.

Am I making sense or do I just need to go to bed?


Lethal