Complex sentence: The soundtrack of the game was published in Japan by DigiCube, a subsidiary of Square, on December 21,1997, and was reissued by Square Enix on July 18,2007.
Split into simpler sentences: The soundtrack of the game was published in Japan by DigiCube, a subsidiary of Square, on December 21,1997. It was reissued by Square Enix on July 18,2007.