Security Monitor Pro buffers all the video from your cameras. The temporary working folder is used for the buffered files and for recordings that are not yet completed.
When there is no further motion, the recording file is completed and placed in your recording folder or sent via FTP if you have selected the FTP feature.
Your PC must be ON and Security Monitor Pro needs to be running for monitoring and recording to work. A schedule will launch Security Monitor Pro if it is not running. Again, the PC must be on for the schedule to start.