They include Toshihiko Takamizawa, Yoshino Aoki, Hideki Asanaka, Kakeru Ishihama, Hiroyuki Iwatsuki, Yuzo Koshiro, Motoi Sakuraba, Koji Hayama, Norihiko Hibino, Takushi Hiyamuta, Kenji Fujisawa, Hiromi Mizutani, Yasumasa Yamada, Yasuo Yamate, Biei Morioka, Toru Nakagawa, Minako Adachi, and Megumi Komagata.
The album was produced by Norihiko Hibino, who also composed three of the album's songs and co-arranged two tracks.
Most of the original music was composed and arranged by Harry Gregson-Williams, with the exceptions of "Metal Gear Solid Main Theme", composed by Georgy Sviridov (arranged by Harry Gregson-Williams), "Can't Say Goodbye to Yesterday", written by Rika Muranaka and performed by the Felix Farrar Orchestra and (in the full version) Carla White, and "Fortune" and "Who Am I Really?", composed by Norihiko Hibino.
The soundtrack consists of two discs and features music from various artists and composers such as Harry Gregson-Williams, Norihiko Hibino, Cynthia Harrell, TAPPY, and Starsailor.
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"Healing Tracks" are actually written by Norihiko Hibino, who selected song titles and artist names as a parody of the music in the '60s.
"Evasion" is a remix of "Countdown to Disaster", which is composed by Norihiko Hibino, and is featured on Metal Gear Solid 2: Sons Of Liberty Soundtrack 2: The Other Side.
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The soundtrack contains 44 tracks composed by: Akihiro Honda, Kazuma Jinnouchi, Nobuko Toda, Takahiro Izutani, Norihiko Hibino & Yoshitaka Suzuki.
After working with Konami, Hibino started his own company, GEM Impact, which is a studio consisting of composers Takahiro Izutani, Yoshitaka Suzuki, Takahide Ayuzawa, and Norihiko Hibino himself.