I happened to run cdcheck too when testing 20070201 alternate amd64 (because it was missing md5 info) and it worked ok.
If you check the desktop, please use the Herd3 one. -- error when attempting to test Cd integrity - Feisty https://launchpad.net/bugs/82033 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs