I'm new to Mac and am trying to move a slew of files from my PC in preparation for a total switch. In this case, I had two folders with numerous subfolders that I wanted to make available on my iMac G5 (Leopard). I copied the folders to CDs, then transferred them to the Mac. But now I'm unable to write to those folders/subfolders. Apparently, my permission is restricted to "read only." When I go to Finder, then Get Info and try to change the permission, Mac will not recognize my administrator's password. The folders/subfolders were not password protected on the PC so I don't know what password Mac is looking for. I need full access to these files (R/W) on the Mac so any advice would be appreciated. Apparently I also have to change the permission on each of the subfolders.