What are the possibilities for adding image/video content directly to the blockchain rather than using 3rd party hosting? I guess you'd need really big blocks?
A better way is to post a decrypt hash to the blockchain and a link to where the content is hosted. That proves you own the content because you own the keys that posted the hash.
Your files? I'm not sure we are discussing the same thing. I'm talking about making a YouTube clone where everything included the videos are hosted on the blockchain.
It would never happen in a big way because the barrier to entry for YouTube is having a camera and an internet connection. What you're describing would be thousands of dollars.
YouTube still works reasonably well, but it's centralized, so censorship and demonetization will probably increase. I don't think a P2P distributed data store needs to be that pricey.