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I thought I had tried that - but I hadnt left a space between the last ' and " thanks from Australia
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I only included it to make it easier to see what was single quote and what was double quote. So exiftool works for the logitech webcam files, but not for Android cam files. I didn't bother to play the videos that time, but I did not rely on the thumbnails for the cell phone videos and I just double checked to confirm.
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(and very busy with other matters since) The thumbnails did not change after exiftool (remained right side up), but the actual video was inverted as I intended for the test.
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