To play custom music In Unicorn, you must have a playlist on your PS3 named "ガンダムユーニッコーン" minus the "". A simple way to do this is to make a new folder on your desktop and name it ガンダムユーニッコーン. Copy that folder onto the PS3. Once on the PS3, choose to edit that folder's information and select all the text and copy. Then go to Create New Playlist and paste. Add away!