How many layers of folder navigation does the fuze support?

HI guys after a long long time! 

How many layers of folder navigation does the fuze support? 

Is it 5 or 6?                                                                                                                                                       Thanks,SR        

Do you mean the depth of folders/subdirectories? Some time ago I placed files in a folder about 10 levels deep (below MUSIC) and the Fuze had no problems with that …