Start, Settings, Control Panel, Administrative Tools, Computer Management, System Tools, Device Manager, Expand IDE ATA/ATAPI Controllers, right-click the controller, Properties, Advanced Settings, and select the transfer mode for the device. LarryRefs:
mskb 247426, Device Settings Are Hard to Find in Windows (an understatement), http://support.microsoft.com/support/kb/articles/q247/4/26.asp
mskb 249334, Troubleshooting DVD Problems in Windows 2000, http://support.microsoft.com/support/kb/articles/Q249/3/34.ASP