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Apologies if this is already covered but most threads I have found with similar issues seem unresolved. I have a set of videos from an ipad that play perfectly fine in VLC and any other media player (they are avi).  When I open them in kinovea they appear as just a black screen. I have videos from 2 other ipads that all worked perfectly, not sure if I inadvertently changed a video setting or something?  Any ideas on how to salvage these data?

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Link to some of the problem files here:
https://www.dropbox.com/scl/fo/3l1d2b0c … ltcwmlpqvq

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Thanks for the videos, I'll look into it.