Suddenly I am unable to play music CDs through my Mac.  On inserting a CD into 
the external drive Itunes opens and the track list of the CD is shown but 
iTunes will not play any of the tracks.  Previously I have had no problems 
playing CDs.  I doubt the problem is the player as it happily plays DVDs.  Any 
thoughts or advice?

Barry

iMac 27in late 2014
OS 10.14.2
iTunes 12.9.2.5
external player “Archgon” DVD/CD player
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