And I third them... I've used TDK, HP, Sony, Phillips, Imitation, Memorex, and Verbatim and out of all of those, Verbatim is the only one that has yet to give me a coaster disc.
I can vouch for the Memorex CD-RWs not being reliable. I got a 5 pack in slim cases and of those, 2 had been faulty after 2 or 3 rewrites.