Hey guys, I am new here, but I am a member over at M3fourm.net. I own a 2006 IB M3 and I am interested in updating the navigation software. On the setting screen it reads sw 4-1/60. I remember looking up what version this was but cant recall right now. I have been reading about upgrading the software, but still seem confused. I have the software downloaded to my computer and have used tugzip to open the files. The files that I see are V29.mdf and V29.mds. Now do I write these files to a cd using alcohol 120% on 1x-4x speed and then pop that cd into the car or am I missing something? If there are any good newbie links about nav can you direct me to those.