Those who join the "Napster To Go" service can receive a 256MB flash memory MP3 player for free, or pay an additional $50 to get a 1GB flash player.
Company representatives were unavailable for comment.
The device comes as Apple Computer continues to dominate the digital-download market. Napster andwith iTunes have into Apple's lead due in part to its streamlined approach to selling music and its iPod music players.
According to a report in Mobilemag.com, the Napster player supports the MP3, WMA, WAV, MPEG4 (video), and JPEG (photo) formats.
Napster's design is reminiscent of that for the iPod, with a large wheel under the display screen. When it comes to storage, Napster's has a long way to go to catch Apple. The largest-capacity iPod is equipped with 60GB of memory.