http://mutaiyas.com/db/System%20Data%20Dictionary.htm

The above link is a website that shows an ER diagram along with the tables. Its a simple video blog system. I require comments on whether what I have done makes sence (diagram, tables and so on)? How can the existing stuff be improved?

Your help is kindly appreciated.

i would combine the User and Admin tables, and have a column named isAdmin to identify the admins

if Privilege is really 1-to-1, just combine it into the User/Admin table -- otherwise, you'll need another table between them, if an admin can have more than one priviledge (which is the most flexible scenario)

can you read this --difficult, isn't it? so please, remove the "tbl" prefix from your table names

Did the changes and now it looks better.