Well dear pretty easy you only have to copy and paste from mp3 rocket n thats it...you see I'm smart c(=
Its so simple first go to my computer and select the folder in which your mp4 player is and then copy and paste your music in it enjoy??????
Um...well if you don't got any music in the folder than you need to put music in it. Like rip a cd and than put that music onto the mp4 player. Its quite simple dear...even I can do it...he he...and I'm not very smart about computers ^^'''