Feallan said:

CatBus said:

It's also an interesting idea for distributing fan edits if Disney starts coming down hard on them. Just distribute xdeltas that convert the Blu-rays to the DeEds. Absolutely no infringement.

Someone would upload DeEd to thepiratebay in t=200s

Then they are the ones doing the infringing, who cares? ;)

But, as AntcuFaalb pointed out with his helpful link, even data that does not contain one bit of usable infringing material (such as xdeltas) could likely still be considered a derivative work, so xdeltas don't really solve that problem after all.