24P DVD

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I'm getting ready to put a movie I filmed onto dvd. I filmed it with the Panasonic DVX100 24P Advanced settings. I was wondering if I use Vegas + DVD to create the dvd as a 24P DVD will it play in all dvd players? Or do I need to add the 3:2 Pulldown?
 
Re: 24P DVD

The DVD player will automatically detect the 3:2 pulldown.
 
3:2 pulldown...

3:2 pulldown...

for Jarred...

the DVD player does things automatically but does not do a 3:2 pulldown...

MPEG2 on the DVD is recorded as 29.97 NTSC - so vegas does a 3:2 pulldown when it makes the DVD (or cinemacraft - whichever you use)...

what the DVD player does automatically (and this feature goes by a variety of names - cinestyle, cinema mode etc etc) is to reverse the 3:2 pulldown (presumably called a 2:3 pullup or something like that) to give your original 24fps...

thassit...

nick
 
Re: 24P DVD

lol.. of course.. would be silly to add another pulldown... It's called reverse pulldown or de-interlacing, depending on what make your dvd player is.  
 
Re: 24P DVD

MPEG2 on the DVD is recorded as 29.97 NTSC - so vegas does a 3:2 pulldown when it makes the DVD
Click to expand...

Unless I'm misunderstanding you, that's not correct... the video that is output from Vegas is a 24p MPEG2 stream -- not 29.97, no pulldown, but a 24P stream.  That stream is recorded on the DVD as a 24P stream.  It is then interpreted by the DVD player and (if necessary) 2:3 pulldown is inserted upon playback.

There's more info on DVD recording than anyone should want to know at http://dvddemystified.com/dvdfaq.html, but section 3.4 specifically talks about video encoded at a 24fps frame rate, and how the encoder will insert MPEG2 "repeat_first_field" flags into the stream so that the decoder will know to perform 2-3 pulldown for an NTSC display (or ignore it for a progressive display).
 
Re: 24P DVD

you output it as a 23.976 mpeg2 with 3:2 pulldown flags... the actual file goes onto the DVD as 24p, just like most motion pictures are encoded.  I guess a simpler way to describe it is that your DVD player Telecines a 24p DVD to NTSC on the fly.. unless of course you are viewing progressive DVD's on a progressive display.
 
you're right I'm wrong...

you're right I'm wrong...

at least I think so...

dunno what I was thinking - the stream is 23.976 with 3:2 pulldown flags - which the DVD player inserts as necessary to make 29.97 for normal TV's or ignores to make 24p...

***********

so presumably then - if you've got a progressive scan DVD player - then why does

http://dvddemystified.com/dvdfaq.html#1.40

go on about deinterlacing film sourced content so much...
presumably with a progressive output you get true 24p out - or do you get 30p out ?

Now I've successfully confused myself...
I buy the idea of the automatic telecine to paraphrase Jarred but what does the prog scan then do in that case ?

anyone ?

nick
 
Re: 24P DVD

Hey whatda bout PAL DVD's now, i know that you can buy multiregion DVD players in the UK and that plays NTSC as well PAL, now how does the DVD output the video when you insert a NTSC DVD? (what is it PAL or NTSC?), i know most TV's are nowadays capable of NTSC and PAL ie they have an autodetect feature..
 
Re: 24P DVD

Pal DVD players can NTSC dvd's, but NTSC DVD players cant play Pal DVD's... that is why alot of smaller productions just encode as NTSC for worldwide DVD sales. Some VCR's are dual format as well.. But I dont think I have ever seen a normal TV that could play show both formats, but I have never looked to hard.
 
Re: 24P DVD

I've actually investigated this as I wanted to make NTSC DVDs and the gurus from what was then SoFo had this suggestion.

Author to 24p!

You can make a DVD that is genuine 24fps, no interlace, no pulldown. Basically the same as what would come off film. Most Hollywood DVDs are made this way. When it's played back on a NTSC DVD player it does pulldown and does the interlace. I'm not 100% certain what happens when it gets played back on a PAL system but what I suspect from a few things I've seen happen is it's fed out as 48i and the TV just copes.

What makes me think that, well I had a DVD that had no Macrovision and I tried to record it to tape, not a chance. The VCR would go in and out of sync BUT Vegas seemed to have captured it just fine except when I tried to PTT it said the whole thing needed to be rendered, so I rendered it to a new file and hey that would PTT. All this is consistent with the frame rate being 24 not 25, I think.
 
25 p

25 p

does anyone know if it is possible to make a progressive pal [glow=red,2,300]25p dvd ?[/glow]

I know that 24p works fine, but is 25p also an valid option for dvd? or should I convert 25p to 24p before outputting to dvd

I wonder if a dvd player that detect progressive footage also detect 25p dvd standard

This would then require less data than 50i so more datarate= better quality.

If this is not possible I would concider buying a ntsc dvx100a ( I live in a PAL country) to avoid any problems with outputting to Film and DVD.
 
Re: 24P DVD

Buying a NTSC camera in PAL land is not a wise idea, even sillier than buying a PAL one in NTSC land. NTSC is somewhat lower res than PAL. It's pretty easy to convert 25p to 24p, the Sony engineers cover that in the 24p white paper.
As to your origianl question, yes there are DVD players starting to appear that will play 25p. I'm not 100% certain though how you convince something like DVDA to author them though.
 
Re: 24P DVD

Hello all. One newbie question for the DVD experts here... Will all progressive DVD players be able to play 24P DVDs and insert 3:2 pulldown, or is there a certain type (or spec) of DVD player that would do this? Thanks.
 
Re: 24P DVD

Yes.  This is how all DVD players (progressive or non-progressive) play DVDs normally to any non-progressive display.  

If your referring to whether any progressive DVD player will play progressive 24p DVDs without applying a pulldown in progressive mode, that would depend on whether the display device is progressive or not.  If it is, no pulldown is needed as the pathway from 24p DVD through display is all progressive capable.  If either the DVD player or the display device is not progressive capable, then the pulldown is automatically applied and the 24p (progressive) DVD will be telecined into 29.97 fps interlaced using the 3:2 pulldown capabilities in all DVD players.

To reiterate, virtually all major motion pictures when brought to DVD, will be produce to 24p DVD specifications.  As this is the usual case, all DVD players know how to read pulldown flags or else they would not be able to play what are in fact the industry standard DVD, which is 24p DVD.

-Rodger
 
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