Brands I've learned to trust...
Imation
Verbatim
Ritek
Decent brands (not as bad a bad media rate as the ones I avoid) include...
Fuji
Brands I avoid at ALL cost...
Sony
Memorex
I had a couple of spindles of Sony at one time (they were cheap)... Of the two 50 count spindles, I had no less than a dozen bad disc's... Of the thousands of disc's from both Imation and Verbatim I've used, I've yet to get a bad disc.
Sony media has been so bad, that no one at work recommends them to any user. You can get lucky and have good spindles of media, but I won't risk it.