| You can get the latest DVD version from Navteq.com for ~$200. Someone mentioned that the dealers are now charging around $200 also. The dealers were charging around $375 - $400+ for the DVD discs. Navteq is the company that makes the Discs for Mercedes. Remember to selcet the DVD disc for a later model (like a 2005ML) not the year of your ML which will come up with "not available" since the CD versions are out of print.
Even though you did mention that you have a 2001 ML430 you may want to update your profile to make it easier for us to help you in the future. - Thanks.
Mike | 
