Movie soundtracks can be purchased online from the iTunes store as well as on Amazon. Both these retailers sell music in a downloadable digital form. Amazon also sells soundtracks on CD or vinyl.
To purchase music from the iTunes store, the user must have iTunes installed on a computer. The program is free and can be downloaded from the iTunes website. On iTunes users can purchase songs individually or in a full album, though certain songs may be available only with the purchase of the complete album.
Amazon sells music in digital MP3 format, as well as on CDs or vinyl records. Users can also purchase digital songs individually for $1.