My reading of Using the External Storage leads me to believe that "media" refers to external storage (not internal). AFAIK, my GSM Galaxy Nexus has no external storage (no USB mass storage). I use the "Autostarts" app to prevent applications from running that I don't use. I see "Media Storage" entries in Autostarts during and after startup. Are these necessary and/or useful for the Nexus? Also, I see a "Media" application (android.process.media) installed on my phone that runs in the background. Is it reasonably safe to stop or remove this application? Any insight is greatly appreciated!