Sony PDW-530 Operation Manual page 58

Next, you can play the selected clip, or include it in a clip
list, as required.
To escape from the thumbnail images to
full-screen display
Press the THUMBNAIL button, turning off the thumbnail
indicator.
Note
When operating from the battery, if the VDR SAVE/
STBY switch is in the SAVE position, there is a delay until
the thumbnail display appears.
During this delay, the indication "THUMBNAIL
PROCESSING" appears on the viewfinder screen and
color LCD.
58
4-1 Thumbnail Search Operations