Thank you for the input RJW.
Since posting my original append, I've tried Skip Doctor. It repaired an unusable Playstation disc to the point it played flawlessly.
My problem with this company is, the box states it works with ANY disc, but fails to state on the outside of the box you need a special adaptor ring to hold the Gamecube type discs. I've been unable to locate the adpator disc locally. It's available online, but the cost of shipping is almost as much as the disc itself. None of the local stores that sell the main unit carry the adaptor. Of course they wouldn't since the box states it works with any format.
Again, thanks for the input. What others have to say is always very valuable to me.