Beyonwiz DP-S1 - Manual (Page 48)

STB & PVR Function
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Please select a recording item with the UP/DOWN buttons to change.
If there is one recording, only one item will be displayed.
z You can change the duration with the LEFT or RIGHT button.
z You can change the file name with the RED button. An on-screen
keyboard will be displayed to edit the file name.
z You can change the locking status of the recording file with the
GREEN button.
NOTE
z You can stop the recording with the STOP button.
z You can change to the recording service with the OK button,