i messed around with my mac too much since i got it last year in july. i wanted a fresh installation, as i noticed the machine that my classmate had seemed to run so must fater than mine. anyway, so i start installing it, clean on a fresh disk, and i get to the second disk. At the end of the disk, it notifies me that something went wrong with the installation and to try again. so I did. same notice appeared, and i pulled the installation log. I noticed that it had a few errors, soemthing like this... BamFileError 5: blah blah ...../iLife Sound Effects/.../x.aif Install failed some file for iLifeSoundsEffects_loops may not have been written correctly. and then it asks me to try again. after 5 install tries, i concluded that it probably had to do with the installation disk. Call apple, told them the same thing, and they told me that this is considered a software problem, and that my applecare protection plan won't cover it, as it is a hardware program. what the heck? it's just a DVD, what's so hard about replacing it? anyways, if i borrowed my friend's disk, would it work? is disks locked to a certain mac?