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The video's that get rewards pay for the storage from what I understand but if the video is not well received when it comes out there are no rewards to pay for the storage. I think an SMT for Dtube could help to fund storage and a way to pay out past the 7 day so the creators can earn from back catalog of videos. I am hoping they come up with a solution like this or the next service that builds on the blockchain will.

Yes. Yet some videos that got good rewards are missing. So while that is how some people thought it worked, it doesn't appear to be the case.