Depends on your dir structure. For me:
Backup = 4
Movies = 3
Music = 4
Pics = 5
TV = 3
Here's why: I count the deepest folder AFTER the root (tower). So, it's \\\ ower\\backup (name of the share)\\xanadu\\xanadu.disk.image\\backup 2012-02-24\\files, files, files
That's four levels deep after the root.
Movies: I've got nothing more than three folders deep. I have 75 dirs containing series of films with more than three in a series. SW, ST, Terminator, plus movies I've ripped special features from.
TV: \\\ ower\ v (name of the share)\
ame of show\\season\\files, files, files