Need help: want to understand metadata use and editing

WD Legacy Products WD TV Live Streaming
2

SMP uses XML files.

You are not going to be able to edit what you want using the default Mochi theme.
You run “get content info” and the SMP gathers all this info for you. If you want more direct control over this information and the way it is displayed - consider grabbing a theme and tweaking the XML and image files.