Can the leopard Disk for a macbook work on my Powerbook G4?

Yes! Your Powerbook G4, which falls under the Power PC G4 category, is capable of installing and running OS X 10.5: Leopard. As long as your laptop meets the minimum requirements listed below it should be fine.

---Quote--- Mac OS X v10.5 Leopard requires: A Mac computer with an Intel, PowerPC G5, or Power PC G4 (867 MHz or faster) processor 512 MB memory or more A DVD drive for installation 9 GB of available disk space or more Some features require a compatible Internet service provider, fees may apply. Some features require Apple's MobileMe service; fees apply. ---End--- Hope this helps!

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