I can view the properties (right click, properties, details) of a video file and it has a field for parental rating.
How can I add a rating to the file (the field is blank)?
There is the problem that if I can add a rating, someone else may be able to change it to circumvent parental controls on a video player. This isn't of concern to me at this time.
Edit: The file types are both .avi and .mpg.
Edit 2: I own the file and have 'full control'.
Edit 3: I should clarify, the field on the details tab is empty and read-only. I can't change it. Perhaps there is a setting elsewhere that changes the field to read/write.
Edit 4: I confirmed that converting the video to a .wmv file type does allow me to change the parental rating as well as many other properties. None of the properties on the Details tab can be changed for a .mpg file. This is not a practical option for me.