DESC: This stylish, versatile player sports a sturdy, all-Magnesium construction, and lets you store up to 45 hours of digital music and bring it with you on a single, skip-free, 1 GB Hi-MD MiniDisc that holds far more songs than traditional MiniDisc media. With Sony's advanced ATRAC3plus compression, more audio files can be burned to Hi-MD media or for that matter, to a standard MiniDisc. Music can be compressed to 132, 105, 66, 64 or 48 kbps (kilobits per second), so you can store more music or record at higher fidelity. By compressing at 48 kbps, users can enjoy 45 hours of music on one Hi-MD disc or 13 hours of music on one standard, 80-minute MiniDisc.