Things You'll Need
Instructions
Turn on your PS3 and PSP. Connect your PSP to your PS3 with the USB cable. Select "USB Connection" from the PSP menu.
Navigate through the PS3 main menu and into the music section. Select the music that you want to copy onto your PSP, and press the "Triangle" button on the PS3 controller.
Select "Copy to" and select your PSP as the device that you want to copy the music to. Wait as the music is copied to the PSP.
Press the "O" button on the PSP to disconnect it from the PS3.