The printed color of the lid on the case carton was changed. I think it went from all blue to blue with a white side. I assumed that's because the paper product inside is being supplied to Staples by another manufacturer than the previous box. I now find that the paper is very curly after printing on a laserjet printer. I tried flipping the paper before printing and it does the same thing if not worse. Also the feel of the paper seems to be not as smooth as it use to be.
As I indicated the rebate made this 20lb all purpose paper quite a value. The brightness rating of 96 is something I look for. Good everyday printer/copier paper for my Dell laser printer.
I don't think I have bought any other brand of paper aside from Staples' own. There are often rebate offers which makes the deal sweeter - watch for them!