I downloaded a few mixtapes from artist's sites and they've stored themselves in my music folder on Windows.

The only one that seems to have automatically transferred itself to Media Player is the Death Grips one, but The Weeknd, Skrillex and Crosses are all still just in the music folder. When I open them to play on WMP it recognises the artwork and track titles, but it doesn't save them in the library. The only option I can see is to 'create playlist', but when I'm transferring that to my mp3 player it's labelling it all incorrectly.

Any help will be hugely appreciated.