It really depends on the brand/type of CD-R blanks
being used.
I try to use only Verbatim DataLifePlus blanks, unfortunately
it's getting *very* difficult to find them. I'm sure there are
other good blanks out there [...]
They aren't available at many brick-and-mortar stores, but
Mitsubishi Gold CD-R's are undisputably the "gold standard".
Kodak used to make Gold CD-R's too, but they got out of that
business several years ago. I managed to buy a few palletfulls
in their fire sale.
Now Kodak has announced they'll no longer make black-and-white
printing papers. I suppose that means that I have to get heavy
back into B/W photography. (You'll also notice that I said "printing
papers", when I was last heavy into photography Kodak was still
selling "contact printing papers".) Maybe skip this whole paper
thing, and print only on emulsion hand-coated on glass plates :-).
Anyway, back to Gold CD-R's, they aren't real cheap, typically
about $1 per CD-R.
Tim.