c8038d0dabedda00a509ea9c446d53992c22f538 *precise-alternate-amd64+mac.iso
8c35342f3a81b9d0898788827f0a219df5c1f35f *precise-alternate-amd64.iso
37c8ba449b870288218471bd1cafcc19a828e05c *precise-alternate-i386.iso