$VAR1 = {
    'cd' => [
      {
        'artists' => {
          'artist' => 'Smashing Pumpkins'
        },
        'serial' => '001',
        'title' => 'I Am One'
      },
      {
        'artists' => {
          'artist' => [
            'Foo Fighters',
            'Smashing Pumpkins'
          ]
        },
        'serial' => '002',
        'title' => 'The Shield Soundtrack'
      }
    ]
  };