For the first time ever, I recently purchased a shrink wrapped stack of Taiyo Yuden DVD-R’s. When I opened the shrink wrap to redistribute the blank discs to empty cakeboxes I had saved, I discovered that many of the discs at the top and bottom had scratched recording surfaces. When I alerted the vendor, they offered me the option of discount off the purchased price or return for refund. Since the middle discs were still in new condition, I opted for the discount, however, I will never purchase a shrink wrap again. I never had that kind of problem with a cakebox.
As to the BD-R’s in jewel cases vs wallets. I understand what is being said. But the convenience of wallets is a factor if you have large quantities of discs. I think the quality paper sleeves may be the compromise here and I wonder if there is some cleaning fluid that is safe that could remove whatever plastic residue that seems to affect those discs that have been stored in wallets.