[Bug-ddrescue] Reading a heavily damaged CD

[Michael Krylov]

Hello!

I've been using ddrescue successfully for dozens of CDs, thank you for
your great job!

But there's only one CD that I have which is so badly scratched that it
doesn't get recognized by drive: when I insert it, drive tries to read
it for some time, and then all programs yield something like "no medium
found", including ddrescue.

I was trying to read at least something from it by hot swapping disks
(i.e. putting good one at first, and then swapping to that one  when 
it starts reading it). I've succeeded in that only once, but foolishly
stopped ddrescue in the middle hoping that I can do this trick once
more.

So, thus, my question is: is there a way to make drive to see that
scratched CD inside when I put it, and then use ddrescue to restore even
1% of data from it?

I know that most likely file system on that disc is dead and I'd have
to use programs like photorec to restore something.

Thanks in advance!

-- Best regards, Krylov Michael