Q-See QSD2316L User Manual page 42

Click Browse to choose the folder which contains the video backup, as in Fig 3.22 Choose Backup Folder.
STEP2
Set the date and channels. It will show the recorded video in area③ with green at the top as in Fig 3.23
STEP3
Backup Data Search.
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Digital Video Recorder User Manual
Fig 3.22 Choose Backup Folder
Fig 3.23 Backup Data Search