I got all the ads, but I’m running late so I only scanned media for office max and staples but have links to thier ads. Credit for the early link to staples goes to gethocowboy (stole the link from his post).
verbatim at bestbuy, office max at office max (could be mcc), maxell at staples. If there are no 16x made in japan at staples, wallgreens has 10 packs 33 percent off. Probably not that good a price but I think people have mentioned seeing mij there if you just want to try a few.