Usually either through Spotify app or through PLEX app which I use to host media I've ripped into mp3, streamed from a PC with PLEX across home network in concert with roku or amazon fire and the PLEX app on those devices. No disc swapping, on demand in any room. There is a a remote server option with PLEX, but I'm not interested in using that feature. But lately using Spotify, nearly all of my CD library is on Spotify and trillions more I do not own on CD. Upgraded Hulu basic service with Spotify for only a dollar or two more a month to get rid of the ads.