Maxell and Taiyo Yuden are the best discs on the market right now. Ritek is pretty good in terms of price/performance, but stick to the top two if you don't mind paying a little more.
I'd suggest you stay away from CMC. Their early efforts at making DVDRs were pretty bad. They didn't burn well and had major issues. Their early cdr line stank to, I had 200 discs from them and all of them had degradtion issues after a year. The edge of the disc would be error filled.
If you had good results from them, good luck.