Возможности RockBox:
* Gapless playback
*
Crossfading * Replay Gain[3]
* 5 band fully parametric equalizer
* Crossfeed
* OTF ("on the fly") playlists
* True random shuffle (fresh randomly shuffled list every time)
* Custom UI themes
* Stereo recording to WAV/AIFF/WavPack (lossless) and MP3 (supporting devices)
* FM radio, including FM recording (supporting devices)
* Remote control (supporting devices)
* Digital SPDIF input/output (supporting devices)
* Last.fm support (even on players lacking RTC)
* Cue sheet support
* Changeable selector bar
* Album art
* Sleep timer
Взято из:
http://en.wikipedia.org/wiki/Rockbox