I had the Media server service restarting issue when I upgraded to JB. I formatted my SD card and removed all the corrupt camera360 files and it got cleared. Now when I start music player, the media server starts and uses up a lot of battery. I found 540 songs in the SD card but only 498 showing up in recently added in the Google Music app after I refreshed. So I assume the rest of the music files are corrupted. Can someone help me how do I go about finding the corrupt music files? I have only .mp3 and .m4a files in my phone.