Samsung UN60ES8000 E-Manual page 47

If there
is no music file on the USB device
or you don't select a folder containing a
music file, the Timer function does not
operate correctly,
if there is only one photo file in the USB,
the slide show will not play.
if a folder name is too long, the folder
cannot be selected.
Each USB you use is assigned its own
folder. When
using
more than one of the
same type of USB, make sure the folders
assigned to each USB have different
names.
[D We recommend that you use a USB