Brand new Bose - 4 months. getting a read out on screen that all my discs are not playable. Reading all would like to try cleaning lens but how do I get at it. Or should I bring it back to store and demand a new one. 4 months old and these problems????

Liz, March 2018

At 4 months old, it will still be under warranty.
One assumes you are in the UK. If so, its the stores responsibility to fix as it isn't fit for purpose. That's the store's responsibility, not Bose's - the Bose guarantee is in addition to your legal rights against the store.

sdggds, March 2018