Hide your media from Nosy Noserson at the push of a button with Media Cleaner, it provides a simple user interface to hide your music, photos or videos from most media applications. It also has a discrete icon and name, keeping people from wondering what you have hidden.

Simply put your media in the PMedia folder and it will not show up in Gallery or Music player. You can have media in the PMedia folder organized however you want, in folders, in folders within folders, Doesn't matter.

I recommend using an application locking app along with this.

Quick Guide:
1. Launch Media Cleaner, it needs to be run at least once.
2. Make sure media is visible
3. Plug the phone into your computer
4. Browse to PMedia on your phone
5. Create a new folder called, Music.
6. Copy music from your computer into PMedia/Music
7. Do the same with pictures and videos.

Screenshots: