Can someone advise me please? I have an RSN-E with the DVD for 2006, which has a part number of 8PO 919 844J. I would like to upgrade to the 2007 maps, which I think is 8PO 919 844M. What is the best way to obtain the new DVD (s)? I have seen them on e-Bay, but am worried they may be poor copies, or have not been described accurately. Any advice welcomed. Thanks in advance.