Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 2.7 | 希望の旅 | 2:52 | 岡崎友紀 | ツイン・ベスト | 岡崎友紀 | Album + Compilation |
| Toshiba Records | TOCT-9723, TOCT-9724 |
| 2.14 | 希望の旅 | 2:54 | 岡崎友紀 | ベスト30 | 岡崎友紀 | Album + Compilation |
| Toshiba Records | TOCT-225, TOCT-226 |
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