This is a CD titled "BTTB" (Back to the Basics) by Ryuichi Sakamoto, released in 1999 by Sony Classical. It is a reissue and promotional edition of the album, featuring a blend of modern classical and ambient music. The CD is in a standard jewel case and was produced by Ryuichi Sakamoto. The music style combines classical and electronic elements, reflecting the artist's unique blend of genres.