I recently noticed that my burns are bad. I am using the same media I have been using for six months now. My burns used to be OK and I have not had any problems pulling movies off of the discs until recently. I ran some tests and every single burn at every speed for these two particular (real cheap) brands of media failed the verification where as two months ago they were fine. I bought a new drive and the media still fails verification but in a slightly different way. I tried a name brand (Memorex DVD+RW) disc that I had recorded onto approx 50 times and it was fine. I have purchased but not yet tested (location location location) new, name brand DVD-R and +R media and I'll retest tonight. So the question remains, can cheap blank DVD-R media go bad sitting on a shelf in a dark cabinet?