cynthia

I've just acquired an old MZ-R700 MDLP (by default) but cannot download any music or audio from my pc onto the device. I have a PC Digital Link device, which is plugged into the usb port on the pc, and an optical cable connecting it to the MD player. But when I try to download something stored on the computer, using windows media player, the MD flashes "NO SIGNAL". It is working, as it is plugged into electrical socket. Does anyone know what is wrong? I'm completely puzzled. Thanks, Cynthia