What are some alternatives?
When comparing Mezzmo and Streama, you can also consider the following products
Universal Media Server - Universal Media Server allows you to host your entire library of video, music, and pictures, and broadcast them conveniently to a wide variety of different devices.
Serviio - Web on Big Screen. Serviio enables playback of online sources like RSS feeds, live streams or web site content so that you can listen to your favourite podcasts or watch latest TV programmes published online.
PS3 Media Server - The download site has the latest releases of PS3 Media Server for Windows and Mac OS X as well as tarballs for Linux/Unix and debs for manual installation on Debian/Ubuntu. For instructions on installing and running PMS from a tarball, see INSTALL.
MiniDLNA - MiniDLNA (aka ReadyDLNA) is server software with the aim of being fully compliant with DLNA/UPnP-AV...
TVersity - TVersity Media Server is a DLNA media server software designed for streaming video, audio and images to your DLNA device (including game consoles, smart TVs, Blu-ray players, and Roku), to mobile devices and to Chromecast.
Infuse - Media player and media server with subtitles and wide codec support.