Amazon Prime Video is able to remove a video from your library after purchase.
We are contacting you regarding a past Prime Video purchase(s). The below content is no longer playable on Prime Video.
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This is why I continue to buy high quality Blu-ray releases for films I love. Physical media is something you own. I generally rip it and put it on a Plex server for easy access and it reduces wear and tear on my precious criterion discs.
If you need subtitles, add SubtitleEdit to the mix... Will read the mkv, does ocr from graphical overlay to text, which Plex can handle as a separate file.