The biggest mix tape of the year will soon be available to buy on cassette tape. The Guardians of the Galaxy: Awesome Mix Vol. 1 soundtrack will be issued on cassette Nov. 28. It was already issued earlier on compact disc, digital download and vinyl LP. Guardians of the Galaxy Soundtrack Hits No. 1 on Billboard 200 Guardians of the Galaxy is 2014's highest grossing film in the U.S. and Canada, with $328 million earned at the box office through Oct. 19 (according to Box Office Mojo). The album's songs play an important part in the blockbuster film: They are on a mix tape in the main character's Walkman, which was given to him by his late mother. The set's music is heard throughout the film and the tape itself has a prominent role in the movie's story. The limited edition Guardians cassette (released through Marvel Music/Hollywood Records, a division of Disney Music Group) is exclusive to the community of independent retailers associated with Record Store D