2008 ML320 CDI, 33,000 miles. This is a new issue with our navigation system. It may be coincidence but this happened on Dec. 31, 2009. The DVD is the original 2007.1 version that came with the vehicle. We had used our navigation DVD without a glitch until this date, then on a short trip we were listening to the radio when we decided to program in our destination and got the message that our navigation DVD cannot be read, please check the navigation DVD.

Has anyone experienced a DVD failure like this before? We surely hope the DVD doesn't have a use time limit.

Jim W.