(YouTube link)
OK, I don’t know how it’s done and I can’t find any technical information behind it, but apparently you can play music on a floppy disc with a stepper motor. I found a link to this post in the comments at VideoSift that might makes some sense to those who have more expertise than I do. -via VideoSift
In the scanner, its stepper motor is directly driven by the micro (with a driver IC of course), and can directly pout any frequency it wants on the motor.
Holy smokes, dude. That was effin brilliant, no matter how "bad" it sounded.