To those much wiser than I am:

I am in the process of converting over a hundred VHS tapes for my family but notice on the first capture a line/image glitch near the bottom of the frame (images and sample video link included). The hardware I am using is:

JVC HRS-3500 for playback
a Panasonic DMR ES-15 as a Line TBC pass-through device to my capture hardware
The capture device hardware is an ATI TV Wonder 600 USB
The computer I am using is an Dell Optiplex i5 2400 3.10 Ghz processor (with a 240 gb SSD and 4GB of Ram) running Windows XP Pro SP3
the software I am using is Virtual Dub 1.9.11 with Huffy YUV codec.

The screenshots are from the raw video capture (AVI) from Virtual Dub and the video in the link provided is an export from Selur Hybrid.

https://youtu.be/qA8nYWyvJDI

Image
[Attachment 84256 - Click to enlarge]

Image
[Attachment 84257 - Click to enlarge]

What could possibly be the cause for the glitch? It is not visible on the playback to a television and seems to be a product of this combination of capture hardware and software. Any advice/feedback on what settings I should possibly adjust to avoid this result? I am also waiting for a ATI "Gray Box" TV Wonder USB to arrive to see if I get an improved capture with this hardware. I am primarily concerned with addressing the glitch/defect in the image quality but I also notice in Selur Hybrid the export result seems “jittery” and i’m not referring to my camera work as a 7th grader using my parent’s new camcorder, just the motion cadence/frame interpolation effect that seems a bit off. The Selur Hybrid settings I am using are as follows

exporting to an pro-res mov container (originally an AVI)
NNED13 resizer method
bicupic spline resize method
vaporsynth
auto-deinterlace handling with QTGMC top field first
enabling “bob” for, and slight de-noise and sharpen filters

Any help would be greatly appreciated. Thank you.