This option allow you to record your show with an MP3 File.

Here is how:

  1. Select MP3 Options -> Load MP3
  2. Select an MP3
  3. Select MP3 Options -> Sync Show to MP3
  4. Press the right arrow key in time to move the marchers with the music
  5. When done go to MP3 Options -> Stop All Playback and Recording
  6. To play it back select go to the first set in the show, then select MP3 Options -> Play MP3 With Show
  7. To stop it select MP3 Options -> Stop All Playback and recording

See the following for a demonstration: