Record MP3s or CDs at up to 32x speed on affordable MD media for over 5 hours of music per standard 80-minute disc * Up to 56 hours of playback 1 AA battery * Easy Skip group/folder navigation in player; plays ATRAC3, MP3, WMA, and WAV files * Sony"s ATRAC3 DSP encoder improves audio quality in high frequencies over previous MD compression schemes * Music-management software ensures seamless file transfers to and from your hard drive; multi-speed transfers via USB port