My secondary player, an old CLD-V710 Karaoke machine built like a tank, makes an odd noise and I was wondering if anyone else has experienced this, and if there is a solution. Whenever it is playing a disc, i.e. when the laser is lit and focussed and the disc is spinning, there is a high-pitched noise. By comparison with TV noise I call it 10-12 kHz. This is easier to hear when a CD is in, since there is less motor noise. After putting in a CD, the TOC is read: the motor starts, and after a moment there is a series of beeps from within the machine superimposed on a high-pitched whine; then the motor stops again, and with it the noise. Press PLAY and the motor starts, there is the same series of beeps and then the continuous whine as long as the disc continues playing. This is rather distracting, and I don't enjoy listening to it. My CLD-D704 doesn't make this sound, nothing more than a couple of very faint R2D2 chirps as the focus servo finds its place; neither does any CD player I have ever used, nor [to my recollection] the old gas-tube player I got for a pittance. I've had it serviced and the optics realigned, by a Pioneer Authorised centre, on account of some other trouble, but the sound was the same before and after. So, is this unique to me?