ddrescue trying to read a scratched DVD from a public library comes close. Horrifying sounds as you contemplate your drive wearing itself down, copy progress ETA 47:32:13
The secret for scratched CDs/DVDs I learned way too late in the game was that you can actually polish the clear plastic underside with Brasso (brass polish) and a lens cloth. I restored sooo many optical discs this way. It really works!
