Appreciate the response to inquires about the CDDVDW TS-L633C. My bad, referencing Samysong. The CDDVDW TS-L633C has burned well, but I have had continuous problems reading. I see that I am not the only one with this problem concerning this model CDDVDW TS-L633C. The frustration, time and again, are not worth it.
As per suggestion, I have purchased a different external model. Again, thank you for the responses.