problem with mediaserver

[L.B.]

hi all,

I had a problem with my GTA04: it kept waking up every 2 min or so
(draining all the battery very quickly), and the USB networking kept
crashing every few minutes too.

It looks like the culprit is mediaserver. I stopped it (pkill
mediaserver) and now everything seems to work just fine.

Does anybody knows which package installs mediaserver please? I just
cannot find how I got it at the first place. Also, is it an important
component for the system?

Thanks!

Lionel