Yeah, I've recently found some ~20 year old CDs where I had burned some music I produced in my 20s with a friend. I ripped all of them but it took ages and there was a lot of corruption.
I pulled a collection of photos off an old CD-RW for a friend a year-or-so ago. It took some effort but we finally got almost a full copy of everything (just a couple of the files just wouldn't read at all). I ended up trying several optical drives, the disk was most readable in one but some parts it couldn't get we successfully read with a different drive.
A few files seemed to read without error reported by the OS (though slowly and you could hear the drives retrying the read a few times) on more than one drive but had corruption from one of them, we manually compared different files of the same name to pick the best. Considering this, I'm surprised how much we did manage to read successfully.
There were other things on the disk, MP3s and other such, though we didn't bother trying to rescue these (only the photos were of any significance) so I'm not sure if they were in any better/worse state.
Mildly interesting observation: he no longer had a CD/DVD/other reader in a computer at all. No desktop PC and his laptop has no optical drive. The only optical drive he has is a DVD player hooked up to his TV and that is hardly ever used, as most of what it would be used for he has access to via a streaming service or two. I suspect this is not uncommon.
