[mediasource-addsourcebuffer.html]
  type: testharness
  prefs: [media.mediasource.enabled:true]
  [Test addSourceBuffer() with AAC and H.264]
    expected:
      if (os == "win") and (version == "5.1.2600"): FAIL

  [Test addSourceBuffer() with AAC and H.264 in separate SourceBuffers]
    expected:
      if (os == "win") and (version == "5.1.2600"): FAIL