Sony DCR-TRV39 - Manual (Page 190)

6-3-1 Draw Mode
After setting the tool options, use the mouse to draw directly on the image in the edit window.
Brush button Click to draw with the brush.
Pen button Click to draw with the pen.
Eraser button Click to erase portions of the picture.
Paint button Click to paint areas of the image according to a specified range.
Airbrush button Click to draw with the airbrush.
Brush