Wavy Video!?!

[jaycun]

Hi,

I recently captured video from my old Sony Handycam CCD-TR416 8mm video camera. I was surprised to see wavy video throughout most of the capture. The video was captured with a Canopus ADVC-100 and iMovie (OS X 10.4)

I have uploaded a sample clip that exhibits the waves. Does anyone know how to get rid of these, or even what causes it????

http://upload2.net/page/download/lqS0912SLM3Qq2u/wavy.zip.html

Thanks
jaycun

[jaycun]

oops...almost forgot.

The zip archive is ~4.5MB and is password encoded. The archive contains one avi file that is compressed using the mjpeg compressor from ffmpeg.

The password is: wavy

[zilog jones]

That link isn't working - I can't even resolve upload2.net from here (are they down?).

What kind of waves are these? Could you post a screenshot? If it the mis-alignment of horizontal lines (most noticable down the edges of the picture), then you may need a time-base corrector to sort it out - unfortunately no good software implementation of this exists :(
Don't know how much of a problem this is with 8mm tape, but it's very common with VHS recordings and gets even worse with duplicates.

[DrP]

It definitely looks like horizontal instability. Maybe the drum speed was changing a bit during all the camera movement? A TBC would be the answer.

[jaycun]

That link isn't working - I can't even resolve upload2.net from here (are they down?).

What kind of waves are these? Could you post a screenshot? If it the mis-alignment of horizontal lines (most noticable down the edges of the picture), then you may need a time-base corrector to sort it out - unfortunately no good software implementation of this exists :(
Don't know how much of a problem this is with 8mm tape, but it's very common with VHS recordings and gets even worse with duplicates.

Hmmm...i think i will re-upload the video tomorrow morning....posted along with a screenshot.