24, 25 or 30fps?

Igelkott Film said:
For a DVD production that is going to be screened all over the world.

Witch is the best source frame rate?
Click to expand...

24 or 30 will be fine.

What do you mean by "screened"? Does that mean viewed on a TV/Computer or broadcasted for viewing?
It will matter to whomever is authoring your DVD ( PAL vs. NTSC ...etc. ).

jeff
 
One little-known feature of DVD format is that it allows you to record progressive 29.97p videos, just as well as interlaced 59.94i video. If you shoot in 720p29.97 on the AF100, you can render a wide-screen DVD version as an anamorphic 720x480 video at 29.97p. Modern DVD players and HDTV's will handle this progressive format without a glitch. In addition, the screen refresh rate of most monitors is 60p, which works most smoothly with 29.97p video.

If you shoot in 23.976p, you will have to interlace and telecine the final output into 59.94i format in order to make it compatible with DVD standards. Unlike Blu-ray format, DVD does not support progressive 23.976p video. In my view, that makes 29.97p the best choice for DVD distribution.
 
Shoot it in 24. DVD players have native support for 24p worldwide, and I've sold lots of DVDs around the world in 24p, they play on NTSC and PAL DVD players.

You don't have to interlace or telecine the final output to 59.94. You can render out an MPEG 23.976p file and it will author fine to DVD players. At least, that's what we do, and have been doing for many years, and it works fine.
 
Barry_Green said:
You don't have to interlace or telecine the final output to 59.94. You can render out an MPEG 23.976p file and it will author fine to DVD players. At least, that's what we do, and have been doing for many years, and it works fine.
Click to expand...
Right, but for DVD, it's recorded to the disc with pulldown at 59.94i isn't it?
 
According to the MPEG properties it's rendered out as a 23.976p file. It certainly takes up less space than a 59.94 file.
 
It's encoded progressive 23.976, but soft pulldown flags are added before authoring the DVD . Some programs do this automatically during the encoding stage. The difference is it's encoded progressive, not interlaced (interlaced encoding with hard pulldown or hard telecine is much less efficient and lower quality because of field the repeats are actually encoded and consume bitrate - 25% more data for nothing lowers quality per frame)

Modern DVD players will read the flag and remove pulldown outputting a 23.976 stream. "Normal" 3-2 judder will be observed on 60Hz displays. All theatrical Hollywood DVD's are done this way. Certainly all NTSC people are used to the judder. 24p or 23.976p blu-ray also will exhibit the same 3-2 judder cadence on a 60Hz display .

99.9% of modern PAL DVD players will play NTSC discs. Some very old models (early 2000's) might not
 
And besides the additional advantages of space and compatibility, is that if you play on a progressive display that's capable of 24Hz, then the pulldown flags are ignored and you get actual legitimate 23.976p output.

DVD plays only convert the 23.976p files to 59.94i when they are connected to a 59.94i display.
 
Big thanx for these answers.

I might actually go over to 24p for all my work her on forth.

... I can't seem to set encore cs6 to 24fps...
 
Last edited:
Igelkott Film said:
... I can't seem to set encore cs6 to 24fps...
Click to expand...

Don't use Encore to render, make your assets using Adobe Media Encoder. It's a bit less confusing to use, even though Encore ultimately interfaces with AME for encoding duties anyway.

EDIT: And for audio, use Dolby Digital Stereo 192kps. You can use LPCM, but it's way larger for little advangate in quality and I've actually run across some very old DVD players that wouldn't play back LPCM but would play Dolby Digital tracks.
 
Gary Huff said:
Don't use Encore to render, make your assets using Adobe Media Encoder. It's a bit less confusing to use, even though Encore ultimately interfaces with AME for encoding duties anyway.

EDIT: And for audio, use Dolby Digital Stereo 192kps. You can use LPCM, but it's way larger for little advangate in quality and I've actually run across some very old DVD players that wouldn't play back LPCM but would play Dolby Digital tracks.
Click to expand...

Oh I see it, and there is no problem in setting everything to highest? 9mbits and quality 5?
 
Igelkott Film said:
Oh I see it, and there is no problem in setting everything to highest? 9mbits and quality 5?
Click to expand...

You don't want to set it too high. I've heard 8mbps is the max you should use to ensure a constant data stream from the disc. I would also use 2-pass VBR. The quality setting I always set at maximum, that just alters the time to compress vs. quality. I don't mind letting it have as much time as it wants to give me the highest quality.
 
Gary Huff said:
You don't want to set it too high. I've heard 8mbps is the max you should use to ensure a constant data stream from the disc. I would also use 2-pass VBR. The quality setting I always set at maximum, that just alters the time to compress vs. quality. I don't mind letting it have as much time as it wants to give me the highest quality.
Click to expand...

8mbps is the *absolute* max. I'm conservative and set at 7.4.
 
You must log in or register to reply here.
Back
Top