Still using my Clip Zip to read books during class, I've read countless books on this bad boy : r/rockbox
SanDisk Sansa Fuze 4GB Rockbox FM/MP3 Player Installed Dual Boot Color Choose | eBay
sandisk sansa clip zip with rockbox firmware and a fiio e6 amp. will take a 64gb card, is well under $100 and will blow your phone away. tiny but mighty enough to
Rockbox – MP3-Player aufmotzen leicht gemacht | serenity's blog