Best-Est is the first live album by Masami Okui, released on June 4, 1999.
| Best-Est |
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| Released |  4 June 1999 |
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| Genre | J-pop |
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| Length | 59:48 (disc 1), 51:58 (disc 2) |
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| Label | Star Child |
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| Producer | Masami Okui, Toshimichi Otsuki |
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- Dare yori mo zutto... (誰よりもずっと...)
- OVA Girl from Phantasia theme song
- Lyrics: Satomi Arimori
- Composition, arrangement: Toshiyuki Watanabe
- Yume ni Konnichiwa -Tanoshii Willow Town- (夢にこんにちは ～ウイロータウン物語～)
- Anime television Tanoshii Willow Town opening song
- Lyrics: Miho Matsuba
- Composition, arrangement: Osamu Tezuka
- Reincarnation
- OVA Tekkaman Blade II opening song
- Lyrics: Satomi Arimori
- Composition: Takashi Kudo
- Arrangement: Toshiro Yabuki
- My Jolly Days
- Anime film Ghost Sweeper Mikami ending song
- Lyrics: Keiko Kimoto
- Composition: Tsutomu Ohira
- Arrangement: Vink
- It's DESTINY -Yatto Meguriaeta- (It's DESTINY ～やっと巡り会えた～)
- OVA Tekkaman Blade II ending song
- Lyrics: Satomi Arimori
- Composition: Takashi Kudo
- Arrangement: Toshiro Yabuki
- Live Alone... Sennen tattemo (Live alone…千年たっても)
- OVA Tekkaman Blade II ending song
- Lyrics: Satomi Arimori
- Composition: Takashi Kudo
- Arrangement: Toshiro Yabuki
- Get along
- Masami Okui and Megumi Hayashibara
- Anime television Slayers opening song
- Lyrics: Satomi Arimori
- Composition: Hidetoshi Sato
- Arrangement: Tsutomu Ohira
- Mask
- Masami Okui and Kasumi Matsumura
- Anime television Sorcerer Hunters ending song
- Lyrics, composition: Masami Okui
- Arrangement: Toshiro Yabuki, Tsutomu Ohira
- Shake it
- Jama wa Sasenai (邪魔はさせない)
- Anime television Slayers Next ending song
- Lyrics: Masami Okui
- Composition: Masami Okui, Toshiro Yabuki
- Arrangement: Toshiro Yabuki
- Naked Mind
- Radio drama Slayers N.EX opening song
- Lyrics: Masami Okui
- Composition, arrangement: Toshiro Yabuki
- J
- OVA Jungle de Ikou! opening song
- Lyrics: Masami Okui
- Composition, arrangement: Toshiro Yabuki
- spirit of the globe
- OVA Jungle de Ikou! ending song
- Lyrics, composition: Masami Okui
- Arrangement: Toshiro Yabuki
- Rondo -revolution- (輪舞 -revolution-)
- I can't... (a.c. version)
- Lyrics: Masami Okui
- Composition, arrangement: Toshiro Yabuki
- Souda, zettai. (そうだ、ぜったい。)
- Birth
- Anime television Cyber Team in Akihabara opening song
- Lyrics: Masami Okui
- Composition: Masami Okui, Toshiro Yabuki
- Arrangement: Toshiro Yabuki
- Taiyou no Hana (太陽の花)
- Shu -AKA- (朱 -AKA-)
- Koishimasho Nebarimasho (恋しましょ ねばりましょ)
- Never die
- OVA Slayers Excellent theme song
- Lyrics: Masami Okui
- Composition, arrangement: Toshiro Yabuki
- Key
- Te no Hira no Kakera (手のひらの破片)
- Lyrics: Masami Okui
- Composition, arrangement: Toshiro Yabuki
- Tenshi no Kyuusoku (天使の休息)
4 June 1999