Get music onto an R4DS.

How do you get music onto your R4DS? thank you.

Just place the mp3's in the folder you want. (you should make one)
and then on the main menu, choose Entertainment (moonshell) and choose the desired mp3.Hope this helps

Yeah it's not called Entertainment, but Multimedia, the middle option on the main GUI. It can also play .ogg (not really used) and .mid files and various other rare formats.