Frame rates and regions

[Pete Burger]

For PAL DVDs it maybe would have been better to shoot 25p rather than 24p.

There seems to be a way to create a 24p DVD:

https://www.dvinfo.net/forum/techniques-independent-production/60115-24p-dvd.html

Or you could create a NTSC DVD by performing a 3:2 pull-down to 29,97 which is a common thing.

Another way is to do a PAL speedup to 25p and pitch the audio down accordingly, which is quite common as well.

There is a rather good article on wikipedia. It covers all the basics. You maybe want to take a look:

https://en.wikipedia.org/wiki/24p

Hope this helps.

[Daniel Hughes]

I was aware of that but I think I’ve done something wrong, as when I go to burn a clip onto a DVD and select 24p there is this awful interlacing. I don’t know if it’s because the project and its footage are 23.976fps when the DVD burning seems to be exactly 24.000fps.

I’ll try that speedup though, and I’ll also try a speedup to 24.000 to see if the burn looks any better.

I’ll also try the NTSC pull-down.

Thanks for those useful links!

[Pete Burger]

Actually all 24p DVDs are 23,976 as well, so this shouldn’t be an issue. What software are you working with?

[Daniel Hughes]

This is with Sony Vegas, burning straight to DVD?

Here is the project’s dimensions and frame rate, and when it’s in burning mode:

When I select the 24p option and begin the process, it renders the video with the correct properties to then be burned to the disk, but when it does this the frame rate seems to be exactly 24.000p, and there is this horrific flickery interlacing.

Gah! It’s quite frustrating! Although if I can’t seem to solve it or find a solution I guess I could just settle with the NTSC 60i thing…

[Daniel Hughes]

Hi Dave.

I can’t quite understand how gamma affects frame rate. I tried burning a clip having changed the compositing gamma to 1 (linear), and I think it’s better, but I’m not quite sure. I just grabbed the footage in the screenshot randomly but it probably wasn’t the best for testing the movement and flickering. I’m trying again with some more kinetic footage as we speak…

Also, could you please explain gamma in the context of frame rates etc?
I’ve only ever known it to be to do with luminance in colour correction!

Thanks,

Daniel

[Daniel Hughes]

Oh goodness. I grabbed some footage with more movement and it doesn’t seem to have worked 🙁

In this piece of footage the camera is panning left to right.

So Tools > Burn Disc > DVD… and I’m given a window with a drop down list and six options. They are of frame rates 50i, 60i or 24p, with a mixture of PAL, NTSC and 16:9 and 4:3, all spread across six combined options. So I choose ‘720×480-24p – 16:9 (NTSC)’.
I choose my drive, and hit ‘OK’. The video begins to render:

I have a feeling I’m doing something stupidly wrong… but that’s what it looks like. And that’s what the burned DVD looks like on other players 🙁

Thanks anyway for your comments, I’ll try to investigate this further and probably consult the vegas forum!

[Daniel Hughes]

Sometimes I wish I was a mac owner.
Thanks for your time anyway!

Daniel Hughes
Amateur Writer, Director,
Director of Photography
United Kingdom

[Pete Burger]

Never used Vegas myself before (although it came for free with my camera), so like Dave said, ask in the Vegas forum. Maybe someone there can help.

All the best!