There are apps that help users to hide pictures,videos,ringtones from the Android Gallery, Music apps. This app is to serve the reverse and that is attempt to "un-hide" them so you can see them appearing in the Android Gallery, Music etc apps.
This will be useful when you are outside of your house or don't have the time and luxury to connect a USB cable to the Android smart-phone to find them. To configure, just tap Start Scan For Hidden To Unhide and let it run in the background. You can then exit the app and do other things else.
To manual trigger Media Scanner, just tap Start Media Scanner. You can then exit the app and do other things else.
The application support English, Simplified Chinese, Traditional Chinese display.