I'm not a fulltimer so there is no pressure on me to find a way to get my 400+ music CDs into my home.
We have a nice stereo system in our motor because I need a "music fix" on pretty regular basis. My tastes are eclectic so my collection runs from JJ Cale and other pop, jazz, and blues artists to classical in almost all forms.
So what I do is pick out about 50 CDs to take with me in a holder (ie, they are no longer in their cases) for a given trip. The selection reflects how I'm feeling at the time and the length of the trip we'll be going on. In addition, I keep a smaller more or less unchanging collection in the motorhome--these often work for me regardless of what mood I'm in.
Ciao,
Doug