navigation system problems. need help

[emmi]

Hey folks, i need your help. i have a eurpean bmw e66 735li from 04 and have trouble with my bmw navigation. I have just purchased the a new road map europe high dvd 2009 from ebay, but when i insert the map to my navigation it comes op saying that i need to insert a map cd..? the old one that i have is from 2007 and it works without any problem. on the cd/dvd it says bmw road map europe high.. could anyone plz tell me is my navigation unit only takes cd map version or im i doing something wrong?

[oddysseus]

is the cd/dvd from 2007 a cd or dvd?

[emmi]

when i look at it, it seems to a cd but not sure..how can i tell if it's a cd or a dvd