Norton 360 backup file categories??

Hi their, i want to start deleting some back up files from Norton 360 backup starting with pictures and music..

the problem is that i cannot delete any files straight from computer: Norton drive system folder(figure 1),

5268iAFC7D89A64BE42AA 5269i08DC5F3933425D13

when i explore the contents in the norton drive system folder it gives me specifications of files, like pictures, music, documents, etc(figure 2). which makes it simple for me to try to  delete because it automatically categorises file and i want to delete all the back up pictures and music files.

 

 

* the problem is that it seems i can' not delete any back up files when  i access it from the computer/Norton backup system folder/. my explorer crashes when i try to do so.

 

 

.. the only way i can delete back up files is when i access the back up folder from computer/local disk (C) N360_BACKUP.:

:the only problem when accessing the back up file from this directory is that it does not display file types categorised, like music, pictures, etc..  so i have no way of knowing weather im deleting music or picture files or something else important i want to keep.

it shows folders like

5270i02691749321E35C8

 

{0

{1

{2

{3

{4

etc

 

and inside the folders it shows files like 

D123003403343LANGAL3R3.

 

... My question is, is one of those folders like {1 ,{2 specifically for pictures and music?  if so which folders is it, so i can delete them..

 

so which one of those folders contain picture and music files???