★★★★★ Step-by-step: How to upload Video to Amazon Prime - Get your Movie on Prime Video Direct

If you have a movie that you'd like on Amazon Prime, here's how you go through the process. Your video will show up in this library on Amazon Prime: https://amzn.to/332smBE
I use https://www.Rev.com for my closed captions.
If you're getting an error with Amazon not uploading a media file, it's probably your thumbnails / poster images. Just re-save them as a different file name, and re-upload them.
Upload your .MP4 video file under the "mezzanine file" option.
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Original review from Beau Chevassus, Knok Studio (Media for non-profits), http://www.knok.org (Seattle nonprofit) Knok.org
Beau Chevassus is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. As an Amazon Associate Beau Chevassus earns from qualifying purchases.
Beau Chevassus Amazon Review Profile: https://amzn.to/35EOeSn