Sony MSW-900 Operation Manual page 84

To set the Loop Rec mode
Follow the procedure below to turn Loop Rec mode on.
MENU knob
1
Set the MENU ON/OFF switch to ON.
The page that was on the viewfinder screen when the last menu
operation ended will appear again.
MENU ON/OFF switch
Chapter 3 Recording and Playback
3
(Continued)
3-21