sorry for such a poor delay in getting this going. I am hoping to get Linux on my iMac to take care of some things. But I am also trying to get other things done before that.
I don't know if I mentioned this, but I tried another CD-R, year or less old easy, was worse. It wouldn't even show any information in that software grip.
The lense may need cleaning. What I still don't get, is how it can install a distro (CD-R and DVD-R), but not run a simple music CD-R.