Making transfers to the device can be done in either UMS or Manager mode.
UMS firmware matches with seeing the player as a removable disk in Windows Explorer and is also used for updating firmware, using iRiver PLUS software.
Manager firmware matches with iRiver Music Manager software.
When needing the Music Manager go to next site and enter the word
manager in the second column next to GO: http://www.iriver.com/flash/index.asp?code=0302 iriver music manager ( Ver. 3.21 ) shows up: click the item and read
the instructions for download and installation.