CDP clicks between tracks.and at the begininning??

I have a new CDP and I am impressed with the sound so far but it has an odd quirck and I was hoping someone could shed some light on what's going on. My player uses a Sony transport and it sounds good but on most CD's it will go "click click" at the beginning of the disc and inbetween tracks as the disc progresses. It happens consistently on most discs but some discs won't make the mechanical clicking from the transport. It is the very same mechanical click I get from my integrated when increasing or decreasing volume or changing inputs. This suggests to me that it may have some thing to do with the relay switch on the display of the transport. On some discs however there will be a very short click at the beginning and then the transport will be silent throught the disc or throughout most of the disc. Its almost as if it depends on how much time is inbetween tracks as if I play a cd that the tracks change but ther music contues from one track to the next without pause or without regular but short pause there is no "click click" noise from the CDP. I like this player but am wondering if anyone else has noticed this type of anomolie on their players and what it could be. Is this a normal function of some CDP's?
I should mention the clicks between tracks are consistant with the disc or track that I am using so it is not random at the CDP's end but depends on the particular track or disc.Some discs may click between 2 tracks out of 12 and some will click for 10 tracks out of 12. I put in an HDCD disc in it didn't click anywhere throught the disc.
Any advise would be highly appreciated.
Thanks