Brand doesn't really matter, but what you want to stay away from are green-colored CDRs (green on writable/bottom side). I usually get 100 CD spindles from Costco, and there's usually a rebate that brings them down to about $0.25 each. Good discs that I've never had a problem with. I've had good results with Verbatim, Maxell, Memorex, and lots of others. Just stay away from green dyes...