While Sony is busy pushing Hi-MD as its answer to digital music on the move development of a hard-drive-based music player has been left to its Aiwa subsidiary The first such product from Aiwa the Giga Pavit will go on sale worldwide in April and is based on a 2GB storage element drive from Cornice The drive provides enough storage to accommodate around 500 songs The devices USB 2.0 interface is able to transfer an hours worth of CD-quality audio in about 18 seconds according to Sony It supports MP3 format files at fixed or variable bit rates.Two versions of the player are available the HZ-WS2000 which has an in-line remote control in the headphone cable and the HZ-DS2000 in which all the components are built into the main case The HZ-WS2000 measures 3.6 by 2.2 inches or about the same size as a business card and is slightly less than half an inch thick the HZ-DS2000 is slightly taller and wider and a good deal thicker at 3.7 by 2.4 by 0.8 inches