The ones at buy.com are RITEK made. If you have a decent burner and software then they should be no problem.
What you want to do is try to find the 2x50pk shrinkwrapped spindle over at CompUSA as they've been positively id'ed as Taiyo Yuden made. Scary good. True you won't get to use a 10 off 30 but you get better discs for sure.