OK, I'm even behind Josh in my understanding of all this. Does "app" mean you have to have a smart-phone or iPad to control your music server? What *is* a music server? We have about 2,000 CDs of mostly classical music and three or four good stereo systems in our home (our Rowland system is currently not set up). I think I understand what ripping a CD means - you "copy" it to the SSD or hard drive on your computer. Then what? I used to edit for people with doctorates ;-), and I too feel extremely foolish asking these questions. I'm trying to grasp the advantages of owning a music server. I already own four outboard DACs, so that won't be an issue unless I'm missing something. I assume streaming is something like Netflix for audio. Does a music server connect wirelessly to the internet via a home router? Does it require a monitor, mouse and keyboard like a regular computer? What type of software does it use? Is the sound at least equal to Redbook CDs? Please point me to further reading if you can. I don't expect any of my colleagues here to write me a book-length response. Our systems are currently Wadia > Audio Research tubed line stages > Levinson amps > various good speakers, subwoofers, etc. Would it make sense for us to add a music server? Thank you for your patience!