Media pages are where consumers can find their event media hosted. When a consumer receives a email or an SMS from a media capture workflow, they get a link to a media page with their media on it. Following the link will allow the participant to view, save and share the media, be it a photo, animated .gif or video. Without a media page and media email, consumers cannot access their media and so they are required if your experience includes a media capture workflow.
The media email functions exactly like any of the other emails in the experience. The Media site is similar to an RSVP site with a header and footer but contains no editable copy.