Portable Audio Players. Recovering data is possible from MP3 players. 
Spotlight on:
Apple today announced that EMI Music’s entire digital catalog of music will be available for purchase DRM-free (without digital rights management) from the iTunes Store worldwide in May. DRM-free tracks from EMI will be offered at higher quality 256kbps AAC encoding, resulting in audio quality indistinguishable from the original recording, for $1.29 per song. In addition, iTunes customers will be able to upgrade their entire library of all previously purchased EMI content to the higher quality DRM-free versions for $0.30 a song. iTunes will continue to offer its entire catalog, currently over five million songs, in the same versions as [...]
Source: http://www.macshrine.com/2007/04/02/drm-free-songs-from-emi-available-on-itunes-in-may/
Of interest, another popular story talks about how to get a free MP3 Player that may be an option for some people. Will have more on 4gb hp ipod mini later.