Music must be in MP3, Atrac3+, AAC, WMA or WAV format.
You can only use AAC and WAV formatted music if you have version 2.00 or higher.
You must have 2.60 or higher to play WMA formatted songs.
WMA9 Professional, WMA9 Lossless and copyright-protected WMA files are not supported.
Note that you must activate the [Enable WMA Playback] setting to play music data in WMA format. You can do this under system settings, under settings in the main menu.
-A connection to the Internet is required for the one-time activation of this setting.
1. Format your memory stick if you haven't done so already.
2. Once you have your music ready, turn on your psp.
3. Go to USB mode.
4. Hook up USB cable.
5. Open icon that appears on desktop.(Probably titled "untitled".)
6. Open folder titled "PSP".
7. Open folder titled "Music".
8. Place your music in there.
9. When songs are done uploading to the memory stick, close window, eject "untitled", unhook USB cable.