The disks arrived this evening. It's been a million years since I've hosted a torrent, but I think I've got it right. Here's the torrent files:
http://hoxnet.com/bt/BMW_NAV_2011.1_east.zip.torrent
http://hoxnet.com/bt/BMW_NAV_2011.1_west.zip.torrent
Someone please confirm that it's working. Note: I have a pretty slow upstream feed so it may take a while.
Edit:
Added some BMPs for disk labels:
http://hoxnet.com/bt/BMW_NAV_2011.1_R1.zip
http://hoxnet.com/bt/BMW_NAV_2011.1_R2.zip