I discovered that the problem with my BeoSound 9000 is fogging over of the laser optics. I live near the ocean, but my apartment is air conditioned. Nonetheless, when I contacted a B & O technician, he suggested that I blow some warm air using a hair dryer into the CD reader head and see if that corrected the problem. It did. I also tried placing a heating pad on the glass over the reader head for an hour and that also worked. Another course of action was to turn on the radio (on mute) for about an hour. It allows the machine to heat up and drive away the condensation on the laser reader lens. That also works. So, my advice is to keep your CD player WARM by turning on the radio for a while, letting the machine warm up, and then try playing your CDs. This approach has saved me an enormous amount of grief let alone expense trying to pursue a solution that really is far more simple than an expensive repair.
Paul Weidig, Honolulu, Hawaii