dev/sdb is the Windows7 drive. Content of drives and boot files stored on drives are shown below:

/dev/sdb1 - 512 MB fat32 partition containing a 'Boot' folder which contains BCD files and a whole wack of langauage folders.

/dev/sdb2 - 110 GB ntfs partition containing Windows7 installation. This partition also has a 'Boot' folder with all the same contents as the Boot folder /dev/sdb1 and a few other files.

/dev/sdb4 - 121.53 ntfs partition containing storage for media

----------------------

dev/sdd - Ubuntu Drive

dev/sdd1 - 512 MB partition containing a 'EFI' folder, inside of which are two folders 'grub' and 'Ubuntu', both of which contain the exact same files (grub.cfg, grubx64.efi, MokManager.efi, shim64.efi)

dev/sdd2 - 48.83 GB ext4 partition that contains the '/' folder and Ubuntu instaLlation. 
dev/sdd3 - 69.91 GB ntfs partition containing storage for media