Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Random play not random

My Pioneer PD-F1009 CD player has great sound. However, the random play does not function right. I have many CDs and songs loaded, and there is a core group of maybe about 20 (out of more than 500) songs that, on random play, are played much more often that is possible in a truly random programming. Before buying the F1009 I had the PD-F407, and it had the same problem.