Romeo and Juliet retold by Leon Garfield, read by Clare Higgins.
Also on the tapes are a plot summary, an Introduction to Shakespeare essay and an interesting piece pointing out Shakespeare-isms we still use today. 

If the others in the series (Hamlet, Julius Caesar, As You Like It, Macbeth, A Midsummer Night’s Dream, The Merchant of Venice and Twelfth Night) are anywhere near approaching the quality of this one, I would be confident in calling this entire series an excellent introduction to the works of Shakespeare.
We had already read Charles and Mary Lamb’s retellings and a number of other less impressive ones. Garfield’s Romeo and Juliet has fast become a favourite.

The jury is out on whether this gets three or five stars!