| Name | Format | Duration | Size | Date | |
|---|---|---|---|---|---|
| 00001_Sound_eto1_01 | Waveform Audio File Format | 1s | 42KB | 2001-10-22 | |
| 00002_Sound_eto1_02 | Waveform Audio File Format | 2s | 50KB | 2001-10-22 | |
| 00003_Sound_eto1_03 | Waveform Audio File Format | 1s | 37KB | 2001-10-22 | |
| 00004_Sound_eto1_04 | Waveform Audio File Format | 2s | 53KB | 2001-10-22 |