DVD label Clipping Mask

Once the label is complete I have to apply a clipping mask. The clipping mask will in turn get rid of the bits round the edges that do not need to be seen and are not part of the disc itself.

To be able to make a clipping mask I drew an circle using the ellipses tool from the centre and went to the further circle guide. I then selected all the elements withing my DVD label by pressing CTRL + A, and with everything then selected I Object, and then selected clipping mask and make. This in turn leaves everything selected within the guide and deletes any off cuts, to leave the product looking like a DVD label.