My 9000 is nearly 25 years-old and is on its third CD carriage / laser reader. Having said that, it was in use almost constantly until I bought a Beosound Moment about 9 years ago. I still use the 9000 though and encounter the same issue as you from time to time. With me, it goes to ‘pause’ mode, as if it sees an error on a CD. Usually this is fixed simply by removing the CD and blowing on it to remove any dust or by wiping it with a soft cloth. If it happens with every CD, it’s possible that the laser reader on your 9000 needs a clean. I think you can buy CDs with a small brush on them that can clean the laser. Sometimes, the laser might also need to be realigned, in which case, you need to take it to a B&O dealer. Good luck!