User`s manual

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B. Main Menu
Every time you start the DVR, you shall see the Main Menu for advanced system functions.
Start DVR: To start the DVR normally.
Play Recorded Video: Playback only. Be sure to enter admin user password first when
you want to enter the Play Recorded Video icon. This option is used to playback a hard
disk without rewriting it with new recording contents.
Disk Tools: Be sure to enter admin user password first when you want to enter the Disk
Tools icon.
S.M.A.R.T Diagnostic: To examine the internal record of the hard disk.
Disk Scan: To check the hard disk status using Linux tools.
Disk Manager: To assign cameras to hard disks or to format hard disk. Furthermore,
this function also can collect recorded data of a camera in different hard disks to one
hard disk when reallocating the camera to hard disks.