ddrescue

GNU data recovery tool
https://www.gnu.org/software/ddrescue/ddrescue.html

Current version
1.22

ddrescue requires the following formula to be installed:
lzip 1.19 LZMA-based compression program similar to gzip or bzip2

Recent formula history

ilovezfs ddrescue: swap GNU url and mirror.
ilovezfs ddrescue 1.22
Dominyk Tiller urls: update ftpmirror to use https
matteocng ddrescue 1.21
Tomasz Pajor ddrescue 1.20

Formula code at GitHub