DVDs are they...i or p

[LethalWolfe]

...interlaced or progessive scan?


Lethal

 

[N8Magic]

Depends on the DVD player.

Most first generation and current cheaper players output the signal in interlaced mode. Some newer generally more expensive players output in progressive mode.

 

[0roo0roo]

does your tv do it?

 

[LethalWolfe]

Both my player and TV are i, but I'm asking if the DVD itself is encoded w/progressive or interlaced images (or maybe it varies by DVD?).


Lethal

 

[Hayabusa Rider]

They are progressive. They can either be shown as progressive or interlaced.

 

[conjur]

DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

 

[pulse8]

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

Exactly. They are interlaced video on the disc, but the player does the conversion.

 

[NuclearFusi0n]

varies by disc

the video on the disc has flags that identify it as different types (different aspect ratios, interlaced or not, frame rate, etc)

 

[Hayabusa Rider]

I stand corrected

 

[Cyberian]

*Dumbass mode on*

Is there any advantage to 'progressive scan' technology in a DVD player hooked up to an older TV?

*Dumbass mode might never go off*

 

[Ameesh]

Originally posted by: Cyberian
*Dumbass mode on*

Is there any advantage to 'progressive scan' technology in a DVD player hooked up to an older TV?

*Dumbass mode might never go off*

no there isnt.



LeathalWolfe check out the defintion of anamorphic.

 

[Hayabusa Rider]

Originally posted by: Cyberian
*Dumbass mode on* Is there any advantage to 'progressive scan' technology in a DVD player hooked up to an older TV? *Dumbass mode might never go off*

I researched this heavily AFTER I bought one. My bad. It did give me an excuse for purchasing a HDTV. Amazing picture compared to any non-HDTV video source I have seen.

 

[0roo0roo]

from ripping dvd files i find that most decent dvds are progressive actually.

 

[conjur]

That's because computer displays are progressive.

DVDs are stored in 480i but, as mentioned above, do contain flags that when properly read (and properly written to the disc) that allow players or certain display devices to display as progressive.

 

[LethalWolfe]

Originally posted by: Ameesh



LeathalWolfe check out the defintion of anamorphic.

Where did that come from?


Lethal

EDIT: Pulse8, if they are interlaced on the disc then what's the point of DVD hardware converting them to prog? All you are getting is line doubling not higher res.

 

[UglyCasanova]

Originally posted by: LethalWolfe

Originally posted by: Ameesh



LeathalWolfe check out the defintion of anamorphic.

Where did that come from?


Lethal

Lol cause I'm bored.

 

[technogeeky]

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

 

[nyeturo989]

jus gimme the loot!

 

[LethalWolfe]

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

Well you can go i->p but like you said it defeats the purpose. But what about something that was originally shot interlaced, would they keep it interlaced on DVD, or line-double it into a b**ch prog-scan version?


Lethal

 

[technogeeky]

Originally posted by: LethalWolfe

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

Well you can go i->p but like you said it defeats the purpose. But what about something that was originally shot interlaced, would they keep it interlaced on DVD, or line-double it into a b**ch prog-scan version?


Lethal

What is shot originally in interlaced? Nothing (unless it was converted, and usually still not interlaced) useful that I can think of is still interlaced. Hollywood-quality cameras are typically 1080 or some other redicliously high res.
Some things that are prog-scan line doubled automatically, but not many.

Does it make a difference? Depends on the eyes and the TV.

If you see a difference, it's worth it

 

[LethalWolfe]

Originally posted by: technogeeky

Originally posted by: LethalWolfe

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

Well you can go i->p but like you said it defeats the purpose. But what about something that was originally shot interlaced, would they keep it interlaced on DVD, or line-double it into a b**ch prog-scan version?


Lethal

What is shot originally in interlaced? Nothing (unless it was converted, and usually still not interlaced) useful that I can think of is still interlaced. Hollywood-quality cameras are typically 1080 or some other redicliously high res.
Some things that are prog-scan line doubled automatically, but not many.

Does it make a difference? Depends on the eyes and the TV.

If you see a difference, it's worth it

Lots of low budget and indie flix shot on DV are interlaced, and many, many documentaries are also shot on miniDV. I know what you are saying though, and I was just posing a hypothetical question before.


Lethal

 

[conjur]

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

If it's a film-based source and properly flagged, a progressive-scan DVD player will convert to progressive scan. DVD titles are typically stored on-disc as 480i. That is beginning to change, though.

 

[technogeeky]

Originally posted by: conjur

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

If it's a film-based source and properly flagged, a progressive-scan DVD player will convert to progressive scan. DVD titles are typically stored on-disc as 480i. That is beginning to change, though.

My experience in filmmaking and film production has proven otherwise. Where did you get this information?

 

[conjur]

Originally posted by: technogeeky

Originally posted by: conjur

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

If it's a film-based source and properly flagged, a progressive-scan DVD player will convert to progressive scan. DVD titles are typically stored on-disc as 480i. That is beginning to change, though.

My experience in filmmaking and film production has proven otherwise. Where did you get this information?

The years I've spent reading alt.video.dvd and reading up on DVDs in general over the last 4 yrs

 

[LethalWolfe]

Originally posted by: conjur

Originally posted by: technogeeky

Originally posted by: conjur
DVDs, themselves, are 480i (interlaced). Progressive DVD players (or outboard processors/televisions/projectors) do the conversion to 480p.

NO.

DVDs are in 480p at minimum - they are converted to interlaced.

You can't progressive scan something when it's already interlaced. That defeats the purpose.

If it's a film-based source and properly flagged, a progressive-scan DVD player will convert to progressive scan. DVD titles are typically stored on-disc as 480i. That is beginning to change, though.

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