I have an experience similar to the last post:

1. The MP3 doesn't play

2. The Midi file DOES play

3. Video 1 shows a black screen, but after a while the audio starts (choppy, and still no video)

4. Video 2 shows a static image (blue), but no video and a snippet of audio plays after a few minutes

 

Is the audio / video emulator just plain broken?