Very small unit 1"x3/4", would like to upload music. It has forward, back, +,- buttons, plus a play button in the centre. There is also a flashing red light and a blue light. I unplugged it from the computer and the lights went out. It won't play anything, either way. Although it did a few minutes ago when plugged in. Previously recorded...Can anyone help? Must record Lara Fabian songs to sing for upcoming trip! TY! kilbyco@hotmail.com