The manual I downloaded says the DP-01 works with Windows ME, Windows 2000, and Windows XP. It doesn't say anything about Windows 98SE.

On the Tascam forum one fellow says he has two computers. One with 2000 and one with XP and neither will recognize the DP-01 from the USB.
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I'm not prejudiced, I hate everybody!! Ha ha! My Sister-In-Law had this tee shirt. She was a riot!!!