I want to rip my CD collection to an NAS so that it can 1) be accessed by our Sonos system, and 2) so we can take it with us and "plug'n'play" connect it to the audio system on our boat. Our Sonos consists of 2 fives, 3 ones, a Connect that enables a high-end set of built-in speakers to be part of our Sonos whole-house solution, and a Boost (which is not really all that necessary but it's helpful when listening to music out in the yard). Currently, Radio TuneIn is our sole source of content for Sonos. My cd collection is sitting unused and I want to use it again. It's a pain to do all that ripping, so I want to do it only once. We are about to replace the audio system on our boat, so now is the time to figure this all out! We don't expect to use Sonos on the boat because we do not always have a continuous, reliable wifi connection. So we just want the NAS to plug into the boat's new audio hardware, whatever that turns out to be. So I have three questions: 1) which audio file format(s) will cover both of those needs? 2) What are the other hardware requirements we need to attend to on the boat to be able to do this? We assume that to browse and select music on the boat we need to use a laptop. (We have two MacBook Airs. (We also have two iPhones, if that matters.) The main audio components we are considering for the boat are: Fusion MS--RA770 Apollo Series Marine Stereo, Fusion SG-DA51600 Signature Series 5 Channel Marine Amplifier, and a Fusion MS-SW10 10" Marine Grade Subwoofer. These all work with the BG GPS/Navigation equipment we are installing. (The only interface between the audio system and the navigation system is the ability to select and control music form the cockpit without having to go below to do so.) We are not planning on using a CD or DVD player; we prefer to eliminate hardcopy content. 3) Which NAS units do you recommend? I have only a couple hundred CDs, so I doubt the NAS has to be huge. We just want it to be easy and reliable. Many thanks for helpful guidance!