Samsung VP-D70 Owner's Instruction Book page 27

Basic Recording
When a cassette is loaded and the camcorder is left in the STBY mode for more than 5 minutes without being used, it will switch off automatically.
To use it again, push the START/STOP button or set the Power switch to OFF and then back to CAMERA.
This Auto Power off feature is designed to save battery power.
Edit Search
You can view a recording using the EDIT +, – function in STBY mode.
EDIT – enables you to play it backwards and EDIT + enables you
to play it forwards, for as long as you keep each button pressed.
.
If you press the the EDIT – button quickly in STBY mode, your camcorder will
play in reverse for 3 seconds and return to the original position automatically.
Mosaic shaped noise can appear on the screen during edit search mode.
Reference
ENGLISH
EDIT +, -
EDIT -
27