When you successfully install a removable-media device, it may not appear in Windows 2000 Backup (NTBackup)? All removable-media is handled by the Removable Storage Manager (RSM). If the device driver does not support Windows 2000 driver extensions, it can not be used for NTBackup.
If the device is not on the Windows 2000 HCL, contact the manufacturer for a driver that supports the Windows 2000 driver extensions.
NOTE: You can always backup to a file.