| Name | Format | Duration | Size | Date | |
|---|---|---|---|---|---|
| ECHI1M1N.WAV | Waveform Audio File Format | 28s | 317KB | 1996-02-19 | |
| ECHI1M1W.WAV | Waveform Audio File Format | 1s | 13KB | 1996-02-19 | |
| ECHI1P1W.WAV | Waveform Audio File Format | 1s | 16KB | 1996-02-19 | |
| ECHI1Q1W.WAV | Waveform Audio File Format | 1s | 19KB | 1996-02-19 | |
| ECHI2Q1W.WAV | Waveform Audio File Format | 1s | 14KB | 1996-02-19 | |
| ECHI3Q1W.WAV | Waveform Audio File Format | 1s | 17KB | 1996-02-19 | |
| SESP1L1W.WAV | Waveform Audio File Format | 2s | 22KB | 1996-02-02 |