Sony HDW-730 Operation Manual page 224

To enter a space
Move the r mark over the INS, then push the MENU knob. The
space is entered in the position under the ? mark on the character
entry row.
When there is a character under the ? mark, the space is entered in
that position, and that and subsequent characters move to the right
one at a time.
4
Move the r mark over
INS.
Push the MENU
knob.
Move the r mark over RET, then push the MENU knob. The ? mark
over the space on the character entry row changes to a r mark.
4-88
Chapter 4 Adjustments and Settings for Recording
Space