You can select a file and erase it.

“Erase?” appears and the specified file is played back for confirmation.
or
+ to select “YES.”

PLAY/STOP・ENTER.
The “Erasing...” animation appears in the display window and the selected file will be erased.
When a file is erased, the remaining files will advance so that there will be no space between files.
PLAY/STOP・ENTER.