HIKVISION DS-7100NI-SL series User Manual page 117

User Manual of Network Video Recorder
Figure 7. 23 Result of Normal Video Search for Backup
3. Backup device management.
Click Erase button if you want to erase the files from a re-writable CD/DVD.
 There must be a re-writable CD/DVD when you make this operation.
 If the inserted USB writer or DVD-R/W is not recognized:
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Click the Refresh button.
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Reconnect device.
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Check for compatibility from vendor.
Figure 7. 24 USB Writer Management
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