Out of sync band in the center of image

[MOK]

I'm having this problem...
This footage was shot 60i, imported as such and edited on a 29.97 timeline, and is headed for dvd. I exported using all the following export methods:

quicktime movie (the first one), dv ntsc 29.97 interlaced->comressor, mpeg2
using compressor... mpeg2
using quicktime conversion... (2nd one), dv ntsc 29.97 interlaced->compressor mpeg2
using quicktime conversion... (2nd one), uncompressed 10-bit->compressor mpeg2

from compressor I used the following settings
interlaced
bottom field dominance
29.97
TwoPass VBR
mpeg2 5mb Ave 7mb Max

without variation I get the following banding in the image (see image). It comes during fast movement or pans much as interlacing artifacts do. This wasn't visible in the fcp viewer of course. It was visible in the quicktime exports though though not as obvious due to bad interlacing artifacts. It is most prominent in mpeg2 format (attached image) and seen equally on computer screen and tv.

-Any ideas why this is happening?
-There was heavy interlacing artifacts in the quicktime movies, I understand this is normal for interlaced footage on computer screen (??) but could it be connected?

Any help would be greatly appreciated!!! Thanks

 

[Dewy-dB]

What was this shot on?

Are you absolutely sure it's not in the source footage? Make sure you select your viewer to 100% and watch for it.

Aside from that I don't have any ideas. I've seen this be a result of a slow video card, but if you're seeing it on a TV too then I have no idea.

Sorry,. that's a bummer.

- G

 

[MOK]

Lousy thing is I don't know what the shooting camera was. It is a consumer DV, nothing fancy. I can find out but haven't.

As far as the artifacts being visible in source footage, not as it appears here, its fairly prominent. All through editing I never noticed any kind of interruption at all, only when it left FCP.

As I said, this was shot on consumer dv(tape). Is it possible that there was some different codec or odd interlacing method that could go undetected until export. I captured and exported this as I have from an xl1 or dvx shot in 60i, but are there slight variations around in cheaper cameras that might cause troubles??
I will find out the make of the camera in the meantime. Any more ideas would be great. Thanks.

 

[MOK]

On closer inspection it looks like it may be from the source footage. It can't be seen playing at normal speed or in a still frame but if I click forward through the frames I can see a little blip that comes and then goes away. What is that? Is there no way to remedy this? Or at least improve it so the footage is watchable. Anyone have any ideas?