I am a new Volumio user and I am just familiarizing myself with Volumio's functionality. So far, I love the application and the interface to my music library. Currently, I am just in the early stages of digitizing my CD collection from the past 3 decades. I am using a Raspberry Pi 4 with 8GB of RAM. I don't have a DAC, so I am using HDMI "out" to my audio equipment. By using the RPi, I have PCM audio "in" and my CD collection is saved as aiff audio files on my hard drives. Volumio handles the music libraries wonderfully. Volumio can find my music library on the SSD hard drive that I can attach to the RPi and also the hard drive that I use for music on my network. I am currently updating and re-organizing all of my music on both of these repositories. I like the way that Volumio seems to be adjusting to my libraries. The real benefit to using Volumio in conjunction with the RPi is that I have a wired connection to my audio system through the RPi, I get better sound quality. Volumio functions as a portable access, via my iPad, to my growing music collection. I am now playing music that I haven't heard in years, thanks to this application. When I am not listening to my own music, as a bonus, I have switched to using Volumio for my music radio streaming, I like the way that it is set up. Volumio and RPi have changed the way that I listen to music! Thank you.