Data recovery tool trying hard to rescue data in case of read errors
GNU ddrescue is a data recovery tool. It copies data from one file or block device (hard disc, cd-rom, etc) to another, trying hard to rescue data in case of read errors. GNU ddrescue does not truncate the output file if not asked to. So, every time you run it on the same output file, it tries to fill in the gaps.
You can contact the maintainers of this package via email at
ddrescue dash maintainers at fedoraproject dot org.