Samsung UN60ES7500FXZA - Manual (Page 497)

ΠIf the files are sorted by Folder view ,
the TV can display the names of up
to 1000 files in each folder.
ΠIf the number of files and folders
saved on a USB storage device is
approximately over 8000, the files
and folders may not appear and
some folders may not be opened.
ΠThe TV cannot play MP3 files with
DRM that have been downloaded
from a for pay site. Digital Rights