I was just completing my latest project and had burned a trial to a DVD+RW which played perfectly. However I decided one scene would look better if I zoomed in on something to highlight it so I re-edited and used the Zoom/Crop tool in Power Tools. I've never used this before but got it all set up ok then produced and burned another trial but when I played it I noticed the edited scene now looked a little jerky and so did the following one. The preceding and remaining scenes were all still ok.

When I tried advancing frame-by-frame in my player I discovered that in the two affected scenes it appeared that every second frame had been overwritten with a copy from its predecessor, i.e. two successive advances showed no movement then the next showed a big movement, the next none and so on, whereas in the unaffected scenes there was movement every frame as I would expect.

This must have been caused by the use of the crop/zoom tool, so the two questions are: what's causing it and why does it also affect the (unedited) following scene? There are dissolve transitions at the beginning and end of the edited scene so possibly the overlap has a bearing on the second question. As mentioned in another thread I'm using the MPEG-2 production with the default values direct from .m2ts sources.

Edit: I've just realised that Video Crop was inadvertently checked in the second scene even though I hadn't cropped or zoomed anything so that's why it was affected. Nevertheless it actually adds further proof that it is the Video Crop tool that's causing the effect.
Regards,
Mike

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