2011 RX350 Mark Levinson audio system. Every disk I insert produces a "check disk 1, 2, 3 etc message. CD's are brand new, not home recorded. Discs are in the right way up. Changer works fine for all 6 slots, load eject etc. All other audio functions work fine radio, USB, navigation. CD's will not play, screen greys out & "check disc " message appears. Anyone have any ideas?
Thanks

 

Insert disc label up ...