Sony +R/-R if Made in Japan are Taiyo Yudens. TY's branded media (Fuji, Sony, TDK) are great stuff, but nothing beats genuine unbranded TY's. Put it this way, genuine unbranded TY's are A to A+ quality. Branded TY vary in quality. Depending on the batch you could get some inconsistent results or incredible results.
But with that said, branded TY media is probably the best stuff you can buy in retail stores. Unbranded TY aren't sold in the US at retail stores, only on the net at stores like rima.com.