The "mix tape": a compilation from music you selected and mixed onto the same blank audio tape or CD.
As John Cusack's character Rob said in High Fidelity: "The making of a great compilation tape...is hard to do and takes ages longer than it might seem. You gotta kick off with a killer, to grab attention. Then you got to take it up a notch, but you don't wanna blow [it], so then you got to cool it off a notch."
Have you ever made a mix tape (or CD) for someone? It doesn't have to be the object of your affection (past or present)--maybe you made a mix tape for your mother on her birthday, or for a friend to cheer up him/her.
Who was your mix tape/CD for? What artists and songs did it feature?