Guys , I created an account just to reply to this thread. I have a Samsung Galaxy S3 and this message kept coming up, like I couldn't use my camera, my files or get to my music without it force closing and it would freeze up a lot too. I tried clearing media storage worked for some people that didnt work for me though. But I think the issue lies in the sd card I have an 8GB SanDisk memory card and all these problems occured when the sd card was in. I even factory reset my phone and it worked for about 2 days before the "android process media has stopped" message popped up again. I took my sd card out and everything is fine now. I think I need a new one all together because my phone stopped recognising it but it would know when I ejected it out of my phone. So I suggest taking out your sd card if that doesnt work take it out, factory reset your phone then try using it without the sd card.