Just to preface this, im running on a Macbook Pro, running tiger, 10.4.11 with 3gb ram and a 2.33 ghz processor. its 3 years old, filled to the brim with stuff and has been used HEAVILY, burned 200 dvds on it last year for an editing job... and now its slow as hell. I planned on getting the NEW mbp that i was hoping would come out the 27th and it didnt. After im done with this machine i plan on reformatting it and giving it to my college bound brother to use for word proccessing and surfing. So the other day i went to open a .mov file that i had ome my computer and it kept crashing Quicktime, i got nervous and decided it was a good time to backup my whole machine. Then i hit a problem. A bunch of random files are not corrupt for some reason. I am getting the error, - 36 part of the file and not be read/written midway through the files copy onto an external harddrive. Originally i thought that new MBPs were coming out on wednesday, so i was going to kinda brush this off, get the new machine i have been waiting for, reformat and hand the computer down to my younger brother. But since the new lapotps arent out yet ill be on this one for a while. Any idea why this would happen? Also, i "Optimized" my harddrive and repaired my permissions using Onyx and i still cant copy the files... The files are totally random, couple photos, some videos, some documents. i was able to back up 98 percent of my data, at this point im more concerned with WHY it happened as opposed to how to fix it, and how to make this machine run better once i reformat it and give it to my brother.