I’ve just got a Galaxy S II from O2. How do I use it as an mp3 player? I connected the phone using usb, no problem. I copied a folder and its mp3 files into the usbstorage directory on the phone. I can play individual tracks by selecting them using the ‘my files’ app. But if I select the’music’ app the only music I see are the two Samsung supplied sample tracks. I’m used to an mp3 player where you just copy a folder into the device and it picks up the songs and puts them in its library list automatically. How do I get this phone’s music app to know the files are there to play?