Copyright homework- (Mashups and remixes which had to be taken down)

Favourite mashups/remixes-DJ Earworm-United State of Pop-He makes remixes off other songs and creates a really good remix.Here is his own website where is all of his videos:http://djearworm.com/

Hitler mashups which have been put on YouTube have been taken down.It contained Hitler over reacting to things. Due to Digital Millennium Copyright Act these have been taken down. Some of them have not been taken down such as the Kayne West incident. Here it is:

Another is the Sonic mashup which is an emerald hill montage.It was taken down due to copyright reasons, possibly by Sega. This is the Sonic mashup: