AK100ii file deleted by mistake

[adey]

hi all
 
quick query, not sure if i should be concerned or not.
 
i was just loading some new music onto my AK100ii and, due to the slightly clunky nature of the process on a mac, dropped a file in the wrong folder by mistake - the first folder on the list on the device itself, called i think "AK100ii folder" or something similar. when i tried to delete the track i somehow accidentally deleted the entire folder.....
 
so i have 2 questions i would really appreciate help with:
 
1. is this folder important, and
2. if so, is there a way of retrieving it??
 
if it's just a copy of the manual i can do without it taking up memory space.
 
thanks all
 
adey