I saw this posted on Fr Z's blog here and Mark's blog here. I ordered the CD's and they arrived today. Surprisingly quick service, past experience with Posta Italiana hasn't always been so good!
There are four CD's, each with the Pope reciting the Rosary in Latin for the Luminous, Sorrowful, Joyful and Glorious mysteries. There is also a booklet listing the prayers and mysteries in Latin. At the back of the booklet there is a paragraph taken from the Apostolic Letter "Rosarium Virginis Mariae":
The Rosary, though clearly Marian in character, as at heart a Christocentric prayer. In the sobriety of its elements, it has all the depths of the Gospel ,essage in its entirety, of which it can be said to be a compendium. It is an echo of the prayer of Mary, her perennial Magnificat for the work of the redemptive Incarnation which began in her virginal womb. With the Rosary, the Christian people sits at the school of Mary and is led to contemplate the beauty on the face of Christ and to experience the depths of His love.