to add new music to mp3 just copy song file (WMA,or MP3) and paste into the root folder of the removable disk drive that is added after you connect it. like when you use windows explorer and you click on computer and see Local Disc C: and CD Drive D: There should be a drive listed like Removable Disk F: or another letter depending on how many drives you have. Or I use windows media player 11 to sync it. But first the song has to be added to the library. Next highlight Music on left pane and it will show your songs. Next there should be navigation window on right with 3 tabs (Play,Burn,Sync) click Sync tab it should then say drag items here to create a list to sync to 'COBY MP3 Player' Do just that. When you got all the songs you want click Start sync under the three tabs from earlier.