If you can still find a copy of this complete set of the Rumpole of the Bailey then you are in good shape.  Audio quality is somewhat compormised by a very mild hardly noticable hum and hiss.  It is as if there is a tiny electrical appliance running during all parts of the program.  The noise is not really that bad.  What makes this Rumpole series nice is the author Mortimer gave little introductions to each episode that gave a bit of insight to the goings on you were about to enjoy.