Jerky playback, but FPS is correct???

[bodomjuho]

I encoded a film which has 23.976FPS to SVCD which has 23.976FPS
but I got a movie with jerky playback. I used TMPGEnc with
vcdhelp.us template with 2-Pass VBR.

Why it is jerky?

[larsli]

Is the mpeg-file jerky or is it when you play it back on your DVD-player? My DVD-player is not very fond of NTSCfilm, and especially when there is a lot of motion the picture is often very jerky. PAL and NTSC play fine.

[bodomjuho]

It is jerky also when played on my computer.

[Gazorgan]

You didn't say what the source was. You said it was film, and 23.976 fps. Was it a DVD or an AVI?

The answer to your problems is always:
1) Field Order
or
2) Improper bitrate (source or destination)

[bodomjuho]

Source was AVI.
How can I know which Field order I should use?

[bodomjuho]

I know it has something to do with Interlace. But how can I know if the source film is interlaced and what field order I should use???