Is 12 inch Powerbook disk user upgradeable?

[Robin Jackson]

Hi

My daughters 12inch G4 Powerbook is running out of disk space.

 have a spare 60Gb drive I have just removed from my 15 inch Powerbook but I
cannot find upgrade instructions which used to be available for the older
Powerbooks.

Anyone know if it is possible?

What the specs (physical size) of the replacement drive needs to be?

Where I can get the instructions?

Cheers.

Robin