I recently purchased a used Beogram CD 50 to complete my 5000 system. I purchased it as-is and the only problem so far seems to be a sluggish tray mechanism. Many times the tray does not have the power to properly load the cd without some help. I see a rubber belt in the mechanism and I assume that like the Beocord it needs to be replaced. Does anyone know of a good source for these? I purchased my Beocord belts from Martin and they worked flawlessly, if he's checking the forums, do you also have any replacement belts for the Beogram?