Jerky action mpegs

[enfield250]

Hello!

I have recently taken some footage of a steam railway, on my Canon mvx25i, taken in 16:9 mode.
Played back on the camera it is fine.
When I edit it, if I render as an avi (DV DVD) the picture is not full screen but the action is smooth, and crisp.
However if I edit as an Mpeg (DVD Widescreen) the resulting acton is jerky, the video doesn't freeze but the movement is not smooth, and the focus is slightly soft.
I am using Ulead VideoStudioe SE DVD, however I have tried the trial versions of Corel VideoStudio X3, Corel Videostudio 2010 Express, Sony Vegas HD9+ pro, Adobe Elements 8 and Videopad.
These all seem to give the same results to varying degrees.
I am not burning to dvd, but steaming to the tv via a Zyxel DMA1000.

Any ides as to a fix would be helpful.
Thanks

[zoobie]

offhand, it sounds like your fields are getting reversed...

[edDV]

I have recently taken some footage of a steam railway, on my Canon mvx25i, taken in 16:9 mode.
Played back on the camera it is fine.

Canon mvx25i is a PAL MiniDV model. Video capture should be via IEEE-1394 interface to a DV-AVI file.

When I edit it, if I render as an avi (DV DVD) the picture is not full screen but the action is smooth, and crisp.
However if I edit as an Mpeg (DVD Widescreen) the resulting acton is jerky, the video doesn't freeze but the movement is not smooth, and the focus is slightly soft.

By "not full screen", do you mean letterbox?

"resulting acton is jerky, the video doesn't freeze but the movement is not smooth"
This sounds like a field order reversal in the project and/or encoder settings.

DV format is lower field first. Both the project and DVD MPeg2 encoder should be set to lower field first.

[enfield250]

ed,

Thanks for the reply!


What I mean by not full screen is not letterbox, the picture actually sits inthe middle of the screen with a black border all round.

I will check for field reversals though, and post the results.

Cheers.

[Case]

When I edit it, if I render as an avi (DV DVD) the picture is not full screen
[...] the picture actually sits in the middle of the screen with a black border all round.

Perhaps your editor captured the DV stream in 4:3 project. That would letterbox it, with black bars as part of the imported video. When played on a 16:9 screen, additional pillarboxing would be applied to the sides.

Try if your editor allows for setting it to 16:9 before importing the original video.

[edDV]

Yep, sounds like a 4:3 instead of DV Wide project setting, then a Wide export. That gets you four black borders.

In the second case there is a field reversal.