Portable hard drive function MP3 players

The Bottom Line: The Pacemaker is a fun tool for DJs on the go. It's not our first choice for playing a DJ gig, but it gets the job done, and the price is a fair reflection of its features and portable design.

Specs: Digital player, MP3, WAV, AIFF, FLAC, AAC-LC, Ogg Vorbis, 60 GB, Lithium ion Rechargeable Player battery

The Bottom Line: Strong features and design make this player worthy of consideration but only for those who don't need high-volume playback.

Specs: Digital player / radio, 128 MB, ASF, MP3, WMA, ADPCM, MPEG 2 Audio, MPEG 2.5 Audio, 1 x AA type Player battery

The Bottom Line: If you need lots of music at your fingertips and hate bloated interfaces, the Recorder 20 is the device for you.

Specs: Digital player, No built-in memory, MP3, ADPCM, 20 GB, 4 x Nickel metal hydride AA type Rechargeable Standard battery

The Bottom Line: While the idea of an MP3-playing Handspring Visor Module makes lots of sense, the MiniJam has a few problems that should probably keep it off your wish list.

Specs: Digital player, 64 MB, MP3, None

Specs: Digital player, 256 MB, MP3, WMA, AAA type Standard battery

Specs: Digital player, 512 MB, MP3, 1 x AAA type Standard battery

Specs: Digital player, 128 MB, MP3, 1 x AAA type Standard battery

Specs: Digital player, 256 MB, MP3, WMA, AAA type Standard battery

Specs: Digital player, 256 MB, MP3, WMA, AAA type Standard battery

Specs: Digital player, 128 MB, MP3, 1 x AAA type Standard battery