Hardware SD structure

[Procyon]

Hello,

I got a question. On the SD card you got as default two folders in the main tree, right? They're called DCIM and Nintendo 3DS.
In the folder Nintendo 3DS you got two folders, one with random letters and numbers and one with private.

In the one with random letters and numbers I got another one with random numbers and letters, is that normal?

Also in there I got 4 folders one called backup one called dbs and extdata and title.

How are those structured?

I couldn't find it on 3dbrew, cause mine is weirdly structured with other names etc.

I hope you can help me out,
Procyon

 

[RainThunder]

http://3dbrew.org/wiki/SD_Filesystem