| Name | Format | Duration | Size | Date | |
|---|---|---|---|---|---|
| mmb20_05.wav | Waveform Audio File Format | 4s | 210KB | 1992-01-29 | |
| mmb20_15.wav | Waveform Audio File Format | 14s | 651KB | 1992-01-29 | |
| mmb20_30.wav | Waveform Audio File Format | 29s | 1MB | 1992-01-29 | |
| mmb20_60.wav | Waveform Audio File Format | 59s | 3MB | 1992-01-29 |