Microsoft Licensing (Systems) Windows Client: Business 2003-08 Microsoft Windows 2000 Professional Service Pack 4 [English] Identifiers on CD: Part No.: X09-75858 End Item Part No.: B23-03951 Matrix: Sony DADC X09-61493 13 A3 Mastering SID: IFPI L553 Mould SID: IFPI 94U1