Demos

[Daphne Du Maurier 164]

On Madonna Remixologie 2 demos are listed for "Dance2Night" and 1 for"Devil Wouldn´t Recognize You" 

Can someone tell me if they are real demos or just fan made versions?

I´ve never heard these versions myself and I can´t find any information about them.

Same thing with "Messiah"...according to them 6 demos leaked, I know only 4.

"Across The Sky"...they list 5 demos...I know 3 including a "Louder Vocal" version but that could be fan made.