I guess I was just curious. Many forms of older re-recordable media lose quality after being re-written (ie. VHS tapes, cassette tapes). Now, I know that CDs and DVDs are digital media, as opposed to analog, but I understand there is still some physical process going on when a CD is burned. Do RW CDs and DVDs loose quality or data accuracy after many uses? Will they ever really wear out aside from the normal wear and tear of handling them?