Greetings
Windows2000 does not enable DMA by default so it's a good thing to check on even if you think it is. Goto device manager-> IDE ATA/ATAPI controllers & check properties on both primary & secondary IDE channels, the transfer mode will be under advanced settings.
Note: The CD Burner & DMA combo tends to "burn coasters"
I don't recall where the autorun settings are but grab TweakUI v1.33 Available (almost) anywhere, It's handy for that & several other things.
Also check out www.windows2000faq.com it's a great site for troubleshooting
Stoic Joker