PORTABLE MINIDISC RECORDER MZ-N510 SONY

The MZN510 minidisc recorder features Net MD that allows direct USB connection for copying music and up to 32x normal speed (LP4 mode)
  The MZ-N510 also features "MDLP", this allows for up to 320 minutes of stereo recording using ATRAC3 compression .
  
  Sony MZ-N510 features>
  ATRAC Type -S-
  USB connection on main unit
  High Speed drive mechanism for fast PC>MD copying using USB
  Up to 1.8x speed transfers for normal ATRAC, 16x for LP2 and 32x for LP4
  6 Character LCD Display on main unit
  MDLP recording and playback
  Converts MP3 and WMA to ATRAC3 for transfer
  Up To 56 hours playback time (LP4 with a Sony Stamina battery)
  Sampling Rate Converter
  Synchro-Recording Function