When you open the CCVSR viewer to play back the video log, you can use the "Save Video" function in the viewer toolbar to save this video log as a separate log file.  

The process will require you a password protection for video log.

After completion, there are two files will be generated, CCVSR viewer and VLS file. 

To playback the video log,  execute this CCVSR viewer, and then use it to open the VLS file. 

More content please refer to the video below