looking for bmw sat nav files

hi all i am looking for bmw x5 series 2004-2005 inblut sat nav in car. files for my friend.

he has a disc all ready but its old 1 . and he wanted it updated to most up to date.

think he has 2005 road map europe high.
dose it just read it off disc
dose anyone know if i can burn files onto dvd disc and it updates his sat nav from that?

please can someone send me a link to disc i need to get.

i am not sure if he has to update it per year. or can put put on most up to date files onto dvd disc and get it up to date that way.?

please can someone help me out with this
thanks graeme

pleas can someone help me out with this please as i am not to sure of what all disc i need. and some more info as wel if poss please.

thanks gsim

This will work but you might need to update the software of the nav drive to v32
http://www.navitotal.com/showthread.php?7684-BMW-HIGH-2012-Speedcam