DJI MP4 Thumbnail

[davidcpreston]

Windows 11, media edit Windows Photos, ExifTool 13.19.
I usually save extracts from my videos, especially from my DJI drone as I have it recording most of the time I'm flying. I have discovered that of the many sources my videos come from only the DJI ones don't update the thumbnail/preview image, which is very frustrating as I may take several clips from a video and they all show the same thumbnail even if that image isn't in the clipped video!
So, I've searched on here and experimented with -ThumbnailImage and found that the DJI files contain the image in -CoverArt. If I add a thumbnail to the mp4 CoverArt overrides it, and I know the thumbnail is there as I can extract it.
The upshot is if I set -CoverArt to nothing and don't add the thumbnail it works perfectly. I checked and none of my other videos from other sources contain CoverArt or ThumbnailImage. Easy solution to strip them out

[StarGeek]

I'm not sure what you are asking. Is it to strip the CoverArt?
exiftool -CoverArt= /path/to/files/

You can view all preview images in the file with
exiftool -Preview:all /path/to/files/

[davidcpreston]

Sorry, there wasn't a question, I was posting so if anyone else has this problem removing CoverArt solves it