Functions in Playback
1. Backup:
   a. Support CD/DVD/USB backup.
   b. Built-in backup program.
   c. Able to show file size on the backup page.
   d. Able to play backup files directly via Windows Media Player without installing additional software. 
 2. Full view zoom in /out in Playback
   Zoom in /out in playback, by dragging up / down / left and right to examine Full View image. Image brightness and contrast are adjustable.
 3. File Protection:
   Select the important recorded video file(s) to be protected from FIFO (First-In First-Out) process.
4. Bookmark
  Advantage: Time saving for re-searching file. It provides an efficient and effective way to collect and
                     check the important video file. 
  Purpose: Bookmark files will be saved to specific data base. It is convenient to re-collect and avoid
                  missing important video.
5. Smart Search
It is able to mask an area for capturing image in playback. The video will be Paused if the masked area captures object motion or triggered image. The sensitivity of triggering is adjustable to fit the searching requirement and recording environment. Any event can be found out within 10 minutes if combining with the function of Panorama Search.