Following this example
"File Created 11/04/2013 21:01:19
File Written 12/04/2013 17:23:52
Last Accessed 12/8/2013 10:01:19"
If this info where from a video. And it has the same date and time in "File created" and "Last Accessed", this means the video was never opened or watched?
Also, if the last written date has a date after when it was created or accessed, in this case with the same date and time as the example, it means the video was opened or watched? For example if you opened the video with WMP (Windows MEdia Player) this can change the "Last written date"???
Which exactly, (examples) can change the last written date of a video (mp4) on a windows system? a system defragment? a antivirus scan?