I beleive the boot mounted sat nav dvd drive in an E65 is the MKIV, but with different connections on the back (MOST system). One of the companys that sells nav and OS discs has said the same discs will work on the 7er. Is he correct?

I've got the discs that I used on my MK4 to add speed camera alerts so can i put them straigt in the 7 series?

Cheers