want to set read only permission on sd card
<p>I want to set read-only permission on external micro-sd card programatically, and user should not be able to access it form phone menu too. </p>

<p>or Is there another way to hide that, because client have a video folder which is played by only subscribed users, therefore i want that folder is either read-only or hidden for other users.
plz help  .     </p>
