In response to your query for drivers for that device, Ricoh does not make drivers for their CD-RW's.
However if your talking about firmware, they do make those and I've uploaded an NT version that you required.
Seeing that win2000 is an enchanced version of NT, NT substitutes can be used.
Furthermore, in regards to drivers windows should've automatically loaded them.
In the future you can download all your Ricoh drivers at