Password protecting folders w/o encryption

Hey everyone. I was wondering if its possible to password protect folders without haveing to encrypt them. I have some (Ahem) "Movie files" that I want to block acsess to. Right now, all I do is just make the folder hidden and then make the folder I keep it in hide hidden folders. It works but its annoying. Many thanks for any help.

RAR supports 128 bit AES encryption which nobody even bothers to try to break provided your passowrd is not your name or an English or Spanish word