It appears that your OS version may be affected by a 28-bit LBA limit.
48-Bit LBA Support for ATAPI Disk Drives in Windows 2000:http://support.microsoft.com/kb/305098
"Windows 2000 Service Pack 2 (SP2) and earlier versions of Windows 2000 do not support 48-bit Logical Block Addressing (LBA) as defined in the ATA/ATAPI 6.0 specification."
"To resolve this problem, obtain the latest service pack for Windows 2000."
Microsoft Windows 2000 Professional Edition
Microsoft Windows 2000 Server
Microsoft Windows 2000 Advanced Server