Music on the go has come a long way recently, with ever more capacity on ever smaller units. For the true audiophile, however, I believe that Sony Atrac3 CDs are ideal.
I first acquired a portable unit to play these in 2004, since when I have created over 90 units, each holding 24 hours of music. I set the machine to shuffle all, and off we go, usually dog-walking.
I intend to give details of some of these CDs, and current projects, in the course of these blogs.
Meanwhile, happy listening!