[pradmatic]

What software are you using for this?

[btrettel]

I'm not them, but I've had good success with ~20 year old CD-Rs using GNU ddrescue.

https://www.gnu.org/software/ddrescue/

Not everything was recoverable, but the vast vast majority was.

[beej71]

Not the parent, but I've been using Handbrake for DVDs and good old CD Paranoia for CDs.

[i80and]

MakeMKV