   title = fileinfo[fields['title']]
   album = fileinfo[fields['album']]
   artist = fileinfo[fields['artist']]
-  data = [index,
-    title or UNKNOWN_STRING,
-    album or UNKNOWN_STRING,
-    artist or UNKNOWN_STRING
-    ]
+  data = [index, title, album, artist]
   return data
 
 

    return song[0]

  title: (song) =>
    return song[1]

  album: (song) =>
    return song[2]

  artist: (song) =>
    return song[3]

  directory: (song) =>
    directoryId = @songDirs[@index song]

    directoryNameArray = [""]
    if directoryId != 0
      parent = directoryId
      if not @directories[parent]
        return ""
      while parent != 0
        [parentStr, basename] = @directories[parent].split "/"
        directoryNameArray.push basename
