On what, a magnet, chipset? A burned disc? Which version are you backing up? Do you really know, or do you just trust? A CD/DVD/Bluray/LP is validated. Ok I am seriously done, I have beat this dead horse. I do know one thing. I was transferring some Bing Crosby and found a manufacturing error. That is getting corrected. A stream...you are screwed. P.S. cute puppie. I love dogs.