User Manual of Digital Video Recorder 
 
87 
5.10 Files Protection 
Purpose: 
You  can lock  the  recorded  files or  set  the  HDD  property to  Read-only  to  protect  the  record  files  from  being 
overwritten. 
 
We  use  the interface of  DS-9000HFI-RT  series (unless  otherwise stated)  as  example  to  describe the  following 
settings. 
5.10.1 Locking the Record Files 
Task 1: Lock File when Playback 
Steps: 
1.  Enter the Normal Playback/Event Playback/Tag Playback interface. For details, see Chapter 6.1.2~ Chapter 
6.1.4. 
 
Figure 5. 32 Playback 
 
2.  Click the    button on the toolbar, and the current record file in playback will be locked. 
 
In multi-channel playback mde, click the    button and all the record files related to the playback channels 
will be locked. 
3.  Click the    button on the toolbar, select Locked File tab, and you can view and export the locked files.