Totus Copy is a utility for transferring data off of a failing hard drive. Totus Copy will scan a failing hard drive and recover the files from it onto a separate functional hard drive. It does this by using a very gentle non-intrusive scanning method. Unlike other transfer utilities there is no timeout for file copies. If the data is readable Totus Copy will transfer it.
Mac OS X 10.5 or later, a failing Hard Drive that still mounts.