DVD playback- Some shots jittery?

C

Can Scanner

Well-known member
(I got the feeling this is a common problem, so I searched, but found nothing. Sorry if it's right under my nose!)

I'm working on a feature length movie (estimated time is 100 minutes), and I've got about 60 minutes shot (with the DVX100A in 24pA) and edited so far. (I'm editing as I go, with Premiere Pro 1.5.) So I tried to make a few quick DVDs of some completed scenes (with Encore DVD 1.5). When they play, certain shots are jittery. Almost like they've been interlaced with the wrong field order or something.
I'm using a DVX100A in 24pA mode, editing with Premiere Pro 1.5 and authoring with Encore DVD 1.5

Any ideas? Might upgrading to Premiere Pro 2.0 help?
I've heard about using the Scene Detect feature during capturing, but I've never used it. Could this help? I've been Batch Capturing all my footage; could I recapture with Scene Detect on?
Thanks in advance!
 
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I'm having this same problem and been doing some trial and error. Are the jittery shots slow motion? Have you applied any effects to them? My tend to only be jittery when I slow the clip down. But then that same clip, played at a different slowdown rate or no slowdown at all, comes out non-jittery. So I don't know. I too am editing with premiere pro 1.5, but authoring with 1.5 as well (instead of encore).
 
No, no slow motion or effects. It's really weird- the jittery shots are always in edited scenes containing footage that had been shot on the same day with the same settings on the same tape.
 
Be sure to use scene detect or capture individual takes. If you just capture a series of takes as one big clip there's a good chance you'll end up with problems. Premiere analyzes the beginning of each clip to detect the pulldown and applies that to the ENTIRE clip. If the pulldown occurs at a different place in the frame sequence of the successive take, it won't remove it correctly - you'll end up with weird interlace artifacts that shouldn't appear in the first place. Does that make sense?
 
Yeah, that helps a lot! Thank you. From now on, I'll make sure Scene Detect is on.
But for now, I've got a LOT of shots captured already. Is there an easy way to correct clips with this problem without recapturing them?
Might Premiere Pro 2.0 be the easiest way to fix this?
 
great, one more thing to worry about. My premiere importer doesn't work. So i have to capture the video from some other source, and can only capture it in big chunks. I hate premiere.
 
I had been having the same issue with 1.5 and 24pAdvanced footage. I was doing a couple of projects where I would capture an entire tape's worth of footage in one clip. (I had dozens of tapes). Anyways, as PrestonH suggests, you need to capture individual takes with 1.5 or it screws up the pulldown. I found even when using scene detect, it would often still mess up.

You can find out if you have the problem by scrubbing the offending footage frame by frame and check for interlaced frames or interlacing artifacts. (If you're using 24pA footage with pulldown removal, you should have ALL progressive frames in a 24p project and shouldn't see ANY interlaced frames).

I've only had 2.0 for a week or so and haven't tested it thourghally yet, however it seems to handle 24p much better. You'll want to upgrade eventually, so why not do it now? I'm thrilled with the improvments in 2.0. Just not having to create "Conformed Audio" files is amazing.. haha.. (2.0 makes small PEAK files instead that goes faster and takes up WAY less disck space).
 
Also, the stuff you've already captured, I don't think there's any easy way to fix it.
Duno about your "importer" problem. Sounds strange. Try posting over on the Adobe boards. I find people are really helpful there. Good luck.
 
SOLUTION!
I'm not sure if this will remedy every single jittery clip I run into, but the 11 minute chunk I had burned to a dvd earlier is now fine!
All I did was record that chunk back to my DVX100A, capture it with PP1.5, and then import the captured clip into Encore. Bam! That's MUCH easier than recapturing all my footage with Scene Detect. (I'm halfway through this movie and I already have 18 hour-long tapes.)

So I guess I should have nothing to worry about anymore. Once I'm ready to burn something to DVD, I'll simply export it to a tape first and then re-import it (which is not a bad idea anyway, for backup).

Everyone else with this problem- let us know if this solution works for you. :)
 
Yeah, Premiere 1.5 would almost always screw up 24PA pull-down removal if you captured multiple takes in the same clip. - Resulting in the "stroby" look on output. I seem to be getting much better resuts with 2.0
 
Can Scanner, i'm not completely sure what ur solution is. you took the 'chunk' of footage, recorded it back to your camera, then recaptured it (i would think this would result in generation loss through compression, would it not?) And then you said you took that footage and put it into Encore. But you didn't mention any editing of this footage. You just went straight to Encore, which would imply this 11 min chunk was already edited together?? What if you needed to edit some more of the footage in premiere again? And how would putting the same footage back on a camera, then recapturing it, erase the pulldown problem?

In addition to that, I don't have the DVX anymore. I had rented it. So the only camera I have to dump the footage onto is a consumer mini-dv camcorder. I can only imagine the problems this is going to cause.

I still have all this jumpy footage. My piece is edited together. Are you saying I should record my finished project onto a tape, then re-capture that, and it'll be fine?
 
IT WORKS!

I was having the same issue. Video looked good for the first shot of the captured file, but scenes after that had the interlacing problem. I captured the same footage but with scene detect on, and it all looks great.

I wasn't sure what the problem was but then I stumbled across this thread and gave it a try.

Thanks guys!
 
The method of recording your edited stuff to a DVX and then re-capturing it for dvd hasn't worked for me consistantly. What HAS worked consistantly is exporting the 24PA movie as a 29.97 mpeg2 file for DVD (using Adobe Media Encoder). Then burn it using any DVD burning program. Encore is great.
 
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