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  1. I have vob files which I rename to mpg, then retrieve in Virtualdub-Mpeg.
    then convert to AVI.
    When the camera or the subjects within the video move (especially up and down), I get a lot of horizontal lines and/or jagged edges of the subjects as they move.
    This is true in the Virtualdub preview panes.
    ?
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  2. You mean interlace lines?
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  3. Member teegee420's Avatar
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    If the source is a film movie you should use IVTC. In the video menu select "frame rate" and then reconstruct fields-adaptive. This will restore the original 23.976 frame rate and de-interlace as well.
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  4. Yes, the distortion looks like interlacing, most notable on subject edges.

    Inverse telecine set to Reconstruct from fields - adaptive.
    With this, the source rate adjustment is set to:
    No change (current: 29.970 fps)

    I have it set to Full Processing Mode (whatever that means)
    Uncompressed.

    Still getting interlacing on subject motion.
    Must be missing something.
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  5. Member teegee420's Avatar
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    That's odd. Try again using the de-interlace filter instead of IVTC. Go to Video>Filters>Add>Deinterlace and just click ok, then ok again and save.
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  6. Much Much Much Better. Thank-you!

    The files are of course huge.

    1) Is there some form of compression I can use that won't compromise the quality?

    My goal is to rip VOBs from my Phillips-recorded AC3 DVDs, convert to AVI so I can edit in Ulead Videostudio 8 (or similar) (on-screen transitions, titles, etc.), then encode to mpg for authoring back to DVD.

    2) do you foresee any problems with this plan and/or other Virtualdub settings I might want to use given the goal?
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  7. Member teegee420's Avatar
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    Here's the thing, if you plan on converting back to DVD you will need to leave the movie interlaced. De-interlacing is fine only if you plan on viewing your files on your PC. Your PC's display is progressive, which makes interlacing clearly evident.

    For compression you should use something that is lossless like Picvideo MJPEG. File size should be around 10gb per hour. There are other compression schemes you can use that can make smaller file sizes, but at the cost of picture quality. You will really notice a significant loss when you export your project from Videostudio if you use a lossy compression.

    To use compression in Virtualdub MPEG2, go to the video menu and select "compression", and select your desired compressor. If you decide to use Picvideo, select it and click the configure button. Use a quality setting of 19.
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