Any URL that ends .mp4 can be posted as a note and the video will be fetched no matter how long => 569.2M

https://ia800903.us.archive.org/32/items/Night.Of.The.Living.Dead_1080p/NightOfTheLivingDead.mp4 

 npub1eek26qhlhptxku39008vnpdzlalksd5z0sn2s4ynmnscwz260h7q57sxmr