DL#1 = Mac OS X 10.0 Retail Install CD (1Z691-2974-A)
DL#2 = Mac OS X 10.1 Upgrade CD (2Z691-3184-A)

Note: The 10.1 Upgrade CD requires Mac OS X 10.0 to already be
installed on your Mac

Compatibility
Architecture: PPC PPC (Carbonized)