par2 is another alternative for redundant copies: https://github.com/Parchive/par2cmdline https://github.com/Parchive/par2cmdline It's kind of like RAID for da

par2 is another alternative for redundant copies: https://github.com/Parchive/par2cmdline https://github.com/Parchive/par2cmdline It's kind of like RAID for data, and removes the uncertainty that maybe ddrescue wouldn't get an I/O error and just receive and save bad data (it happens). It'd also be capable of repairing damage, up to the redundancy level par2 archives are created at (default is 5%, can go all the way to 100% -- which would mean you don't need any of the original data assuming all par2 files are not corrupt either (which it can also handle...)).