I am trying to understand exactly what you mean by all this. Are you wondering how to keep certain people from viewing certain videos; for example keep your kids out of the adult films?
If so, you should be able to adjust each file’s permission via properties/security. Maybe another way to do this is to put certain films on the public drive and have others on a private drive with a password of something like that.
Addl note: it appears we were posting at the same time, so I just saw your reply after mine posted.
You can set the properties of the folders and/or individual files to be accessable by “Everyone” and with Read permission only, and you can have total acess ro Read/Write etc, although I do not know if Read only prevents deleting or relocating. Maybe someone else knows this detail.