Hey, just a heads up for you guys:
I was in a Walgreens recently and noticed they had 50 packs of Sony AccuCORE DVD+R discs for $7.49. The ones I grabbed were Made in Taiwan with a Sony D21 media code. Stumbled on them in the "Computer Accessories" section. My guess is Walgreens might be clearing out some old stock, because they were red tagged on the shelf.
I can't guarantee your local stores will have these, but I'd say it's worth a look. Happy hunting.