Data Rescue Classic for Mac

From Prosoft Engineering:

Data Rescue is a tool for recovering lost Macintosh volumes and files. It recovers files and folders from crashed hard disks, floppy disks, or removablecartridges. Recovered data are saved to another medium, leaving the original disk untouched.The main interest in Data Rescue is that the strategy for finding lost files is original, different from the strategies used by other tools like 'NortonUtilities'. Not only will it find your data in situations where the other tools fail, but it will recover them in a much better condition, restoring icons,dates and even folder hierarchy.