Since the method applies not only to the "video", I changed the title a bit.

This method reminds me of a similar trick we can use in DOS.   ^___^

Anyway, hope this may be useful for you. I'd really suggest you to use things like TrueCrypt if you really concern about your files.

Oh, please be to THINK TWICE BEFORE YOU TRY IT. The author states, "如果平台是Windows Vista的話，資料夾甚至還刪不掉XDD，要用Unlocker之類程式來刪除（聽說是bug但微軟不想修XD）..."

Quote

如何藏好放個人私密檔案的資料夾