I had pretty good luck using a program that could be programmed to extract all readable sectors first and then go over and over damaged areas to try and recover

I had pretty good luck using a program that could be programmed to extract all readable sectors first and then go over and over damaged areas to try and recover the data. I can’t recall the name of it but it had a picture of the developers cat on the GUI. (If it is one of the ones you mentioned already I apologize) Bad link on dvd disaster.