You can rename a file by prefixing characters from a desired template to the file name. A file in the recordable area can be renamed. You can choose characters to be added from the templates.
tab of the folder list.
tab -
“Change File Name,” and then press
.

or
to select the desired characters to be prefixed to the file name, and then press
.

“Executing...” appears in the display window and the selected characters are added to the file name separated from it by an underscore (_).
(e.g. If “A” is added to the file 131215_001.mp3: A_ 131215_001.mp3)
STOP to exit the menu mode.
tab) only.