I plumped for the wrong sort of technology. I got a Sony "Network Walkman", which works adequately to store my entire CD collection on its 20Gig Hard Disk.
Sony did a free "product recall" which I missed. When my Walkman misbehaved, I sent it back, and had to part with 75 notes to get it fixed.
But Chapeau to Sony for still fixing these things, except that they've stopped supporting their on-line music store "Connect". So I still buy CDs, then copy them aboard the Walkman.
Sew i 2 am I-free.