I have a powerbook g4 that was bought private sale. The hard drive after a while made a loud buzzing noise so I changed it out with a pata hitachi travelstar 2.5 in hard drive. The problem is that hard drive does not recognize at all on the powermac system. I tried to install the Mac OS x software through the dvd drive and the dvd wouldn't release the disc. So I broke the drive trying to get it out. Bought a new dvd drive and that is not recognizing the install disc and now the disc is stuck in the new drive and the dvd drive is not showing up on the mac system. Trying to figure the way the mac operates, long time linux and windows user. Even using the cd eject in open firmware I get the message can't eject device message. ---------- I swapped the old hard drive back in the system but it takes 45 minutes to boot into the mac os x and each process takes 5 minutes to complete like clicking on system settings or going on safari.