Replace MP3 title tag to file name

id3.rb

require 'rubygems'
require 'mp3info'

ext = ".mp3"
Dir.entries("./").select { |f| 
  if File.extname(f) == ext
    title = File.basename(f, ext)
    
    Mp3Info.open(f) do |mp3|
      mp3.tag.title = title
    end
    puts "Updated TITLE of " + f
  end
}