General Missing playlist and sudden battery drain

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http://androidforums.com – Greetings! Never ever had battery issues ...infact have had a fantastic run thru Jelly bean also ...but having sudden battery drain by "media server " process what gives ? Incidentally i cleared the cache of media storage and rebooted ..no joy! Also i found out all my playlists had been wiped out ..although music was still around in the external SD Any inputs appreciated Thanks! (General)