R
Rimbert
Guest
I can use Win11's Photos app to trim MP4 files as long as the file is not higher than 4K. For example, if the MP4 is 4096x2048, I can trim, but if I try to trim an MP4 file that is 4320x2160, I get this error: "It looks like you don't have permission to save changes to this file. Try saving a copy instead." When trimming, my only option is "Save a copy". The MP4 files are stored in the same USB external drive. I make sure the files are Unblocked and I have Full permissions on the files.As I've stated, the only difference I can see is if the file is 4096x2048 or lower, I can trim the file.
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