Question #2: DVD Jitters on SOME players

[The Irish TRex]

My second question is...

I am using Premiere 6.02 and I've noticed on some DVD players my 24p footage shakes a bit. Not on every DVD player...but I'd say about 60% of them. And not when I simply export to tape it's always lookin good. I know about the whole strobing thing with 24p footage but this isnt the case I don't think cause my camera is static and there it doesn't happen on all DVD players. My non-24p footage played well on every DVD player so i've ruled out the discs and burner being the problem.

I've read a load of topics and the only thing I've noticed that I didn't do that most suggest when exporting to DVD is I didn't use variable bit rate (I used constant at 7456 mbps) and one person noted something about m and n frames needing to be at 3 and 12 respectively. Would changing this (or other things in the mpeg encoding process) make the difference?

I shot this on my DVX 100B
Edited in Premiere 6.02
Exported it using my Ligos MPEG encoder plug-in.
Burned it using DVDit-pro onto a couple different brands of discs.

Thanks so much!

Hopefully someone can help...

James

 

[Huy Vu]

Does Premiere 6.02 even supports 24p? I don't think the software does it until version 1.5 Pro. If your footage looks shaky then it might be because you're editing in a 60i timeline. Premiere won't know how to remove the pulldown on the 24p which would make it look jumpy. Check your video output first before burning into a DVD to see if you notice this problem.

 

[TeleDan]

You might try dropping your bitrate a little. You're within spec but I suspect that some players don't perform well at the high end of the range. Depending on your audio stream format (PCM, for example) you might have a higher combined bitrate than you think.

Also, jade is right that your version of Premiere does not support 24p timelines. Given that the video still contains the pulldown, the GOP settings (M & N frame) may, in fact, be important. On that I don't really know for sure though.

Given the versions you're working with, you'll probably just need to experiment. Above a certain bitrate, I don't think you'll see a significant improvement in image quality with DV footage. For CBR, I use a setting of around 6.8 mbps.

If you're planning to do a lot of 24p work, you might want to consider upgrading to a version that understands it.

-Dan