| Name | Format | Duration | Size | Date | |
|---|---|---|---|---|---|
| 00001_Sound_eto1_01 | Waveform Audio File Format | 1s | 34KB | 2001-05-07 | |
| 00002_Sound_eto1_02 | Waveform Audio File Format | 2s | 48KB | 2001-05-07 | |
| 00003_Sound_eto1_03 | Waveform Audio File Format | 1s | 28KB | 2001-05-07 | |
| 00004_Sound_eto1_04 | Waveform Audio File Format | 2s | 46KB | 2001-05-07 |