Sony Network Walkman NW-HD1 20gig ?

Sony NW-HD1, HDD, 20 GB, 30 h, Lithium-Ion (Li-Ion) 20 GB internal Hard Disk Drive memory Extremely long playback time of up to 30 hours with the built-in Li-ion battery Sonys unique G-sensor technology protects the internal HDD even if it falls from a height of 1 m Large 7 line (1.5 inch) LCD with green backlight SonicStage 2.1 software for easy music management and transfers Sold As Seen