Q-See QSD371614C4-250 - Manual (Page 29)

Operation Manual-4CH Duplex DVR
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audio option is not available. Next click “ ” to select input file and output file, and click
“ ” to select video compression mode. Finally click “ ” to start, and
progress will be showed as a percentage.
Notes: 1. When selecting video compression mode, user should test the compression
that he selects to see if it is matching his computer. If it doesn’t match the computer
may not be able to play the file.
2. Since this model does not have audio in ports the audio option is not available.
6) Capture
If you want to save a file in VVF file format (*.VVF) on your computer, you must make sure
the playback view is in pause state. Drag playing scroll bar to select start time, click the right
mouse button to select the option “Capture”, then left click “Mark In”. Drag playing scroll bar
ahead to select end time, click the right mouse button to select the option “Capture”, then left
click “Mark Out”. Last left click “Export” and there will be a window “Capture” on screen.