I have had trouble many times in the past but I tried this and it worked for me. I have been cleaning or polishing the disk in a circular motion or around the disk with polish and a paper towel and its never worked. I then read to clean the disk from the center outward. I used a very fine auto polish with a soft rag in the direction mentioned shine dry with lightish pressure ,and it seemed to bring back the reflectivity and voila, it worked! I hope this works for others as it work for me.