When videos recorded on an AVCHD camcorder are captured into AVCHD files on a PC, the time codes (date/time when the tape was recorded) are transferred along with the video/audio data to the files. But the time codes are not visible when you view the AVCHD files. When you use video edit tools (e.g. Windows Live Movie Maker) to convert the AVCHD files to other files, the time codes get lost. By using vATS, the time codes are extracted from the AVCHD files and superimposed onto the videos. This way the date/time will be visible when you view the stamped file, consequently other files made out of the stamped files will have date/time displayed.
Watermark on output