Sony NV-U74 Instruction Manual page 8

For photo playback
In the photo playback display, draw the command stroke as below.
For details on photo playback, see page 37.
To
start the slideshow
(only when playback controls are shown)
skip to the previous file
skip to the next file
skip to the previous folder
skip to the next folder
Make
a horizontal line (right to left)
a horizontal line (left to right)
a vertical line (downwards)
a vertical line (upwards)
8
a dot