This + Rockbox = The best compact MP3 player ever made
Samsung YH-925 HDD 20GB MP3 and WMA Lossless Player with Rockbox firmware | eBay
Freeing Your Music Player with Rockbox » Linux Magazine
work on best low cost mp3 player for rockbox
Amazon.com: MP3 Player, Music Player with 16GB Micro SD Card, Build-in Speaker/Photo/Video Play/FM Radio/Voice Recorder/E-Book Reader, Supports up to 128GB : Electronics
Rockbox 3.0 firmware breathes the life back into your MP3 player | Engadget