Unitiserve 2T ripping issues

2013 model with lateat sw. I find that it won't rip some of my cd's. To many of them fail by the "no cd detected". I can hear the drive trying to read, but after a few attempts, it' s ejected.

It's mostly EMI boxes with classical music. Other labels have almost no failures.

Anyone else experienced this and if so, what was the solution? Naim says (Throught my dealer) that due to production failures some cd's may fail, but not many. I find it to be to many of them.

S