I installed an app yesterday, bomberman vs zombies (not saying that's the cause), played for a while, uninstalled as the audio cut out and wouldn't come back.
Hit the garage and took a few pics with my camera, only to notice they were the only pictures in my album of over 900 pictures!
So I spent the rest of the evening recovering my photos, today I tried to play music and nothing, no music files either. It's like no media is being found, but, when I was recovering my photos off my SD card, they weren't in the directory at all. Neither is my music!