Complex sentence: The original Manami ending with the CD was so disturbing that fans wrote to the company calling the ending nightmarish, so in the DVD and PS2 versions of the game, a new ending was added for Manami.
Split into simpler sentences: The original Manami ending was so disturbing that fans wrote to the company calling to change it. So in the DVD and PS2 versions of the game, a new ending was added for Manami.