Well, those sound like proper retail discs.
I don't think removing the drive plan will work because your computer can not be booted from those discs. What you could do is get an external optical drive if you can find one in an enclosure that supports Firewire. Can't use USB because those models cannot boot from a USB drive.
Hold on, now. I just read your last sentence. I thought this was a PowerBook, not a PowerMac. I misread your original post. OK, that model designation belongs to a PM G4 with AGP graphics. It uses this memory:
Maximum Memory | 2.0 GB under Mac OS X, 1.5 GB under Mac OS 8/9 |
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Memory Slots | 4 - PC-100 3.3v, unbuffered, 8-byte, non-parity 168-pin SDRAM |
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Minimum Speed | 125 MHz (8 ns) |
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Note that it uses PC-100, not PC-133 RAM. The optical drive bay supports
Optical Drive Interface | EIDE (ATA-3) |
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They came with optional optical drives:
Media | 32x CD-ROM, DVD-ROM or DVD-RAM |
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If it's internal optical drive happens to be CD-ROM and those Tiger discs you have are DVDs, then they will never work until the optical drive is replaced.
I apologize for my mix up on this.