Instructions
Insert the USB drive into your computer.
Open the USB drive using the method provided with your operating system. Some computers will open the drive automatically.
Create a new folder on the USB drive titled "MUSIC." Be sure to use all capital letters or the PlayStation 3 will not recognize the files you wish to import.
Open the folder you just created. Click and drag the audio files you wish to import to the PS3 into the USB drive&'s folder.
Close the USB drive window and safely remove the USB drive from your computer.
Insert the USB drive into the port on the PS3. The device will automatically be recognized by the console.
Highlight "USB Device" from the "Music" section of the PS3 menu and press "X."
Highlight the files you wish to import from the USB drive and press the "Triangle" button. Highlight "Copy" from the options listed and press the "X" button. The PlayStation 3 will import the files and make them available for playback from the "Music" section of the main menu. When you are finished importing, you may remove the USB drive from the PS3.