Specific Restore Disks are different. Apple often bundled "Software Restore" CDs with specific models, like the iBook or the G4 Cube. These ISOs often check the hardware before installing. If you try to use an iBook restore ISO on a Power Mac G4, the installer might fail. Always look for "Retail" or "Universal" in the file description unless you are matching the disc to a specific machine. How to Use a Mac OS 9 ISO
Vintage Apple hardware—specifically the Power Mac G3 (Blue & White), G4 "Sawtooth," and the iMac G3 (Tray-loading)—has skyrocketed in value. To boot these machines, you need a bootable CD. Floppy disks are unreliable, and the original hard drives often fail. Hence, the demand for a remains high. Mac OS 9 iso
You have a Power Mac G3/G4 or an iMac G3. You need a bootable CD. Specific Restore Disks are different