forgive me. i’ve tried several different brands of disk. and they all work fine in other computers. i knew that there are sometimes a couple disks that are duds in the stack, so i tried several throughout the package. no good on my MacBook Pro, but they all work fine on our G5 and our Dell.
i can also play and read commercial disks e.g. movie dvds or music cds. it’s the blank ones that are not recognized.
thanx.
ch