Microsoft subsequently licensed Zoo Tycoon 2: Ultimate Collection to Ubisoft, who re-released the game under its 'Exclusive' value brand in multiple territories and in a variety of formats - including a single disc DVD-ROM version for Windows PC. We apologize for any inconvenience this may have caused, and appreciate your patience as we work quickly to resolve the issue.' Customers simply need to call the toll-free customer service hotline at 1-80 to receive a replacement disc for the game. We are providing the correct disc to customers who believe they have obtained a copy of Zoo Tycoon 2: Ultimate Collection with the formatting issue. 'In light of a few instances of a disc formatting issue with Zoo Tycoon 2: Ultimate Collection (SKU# AXB-00033/UPC# 882224717298), Microsoft is immediately replacing the game. Not long after the compilation was released, there were instances of a disc formatting issue where the third disc was exactly like the second one.