At
Supermediastore. Order at least 250 of them (i.e., ten 25-paks) and get the per disc price down to 18 cents. Add another 25-pak and get your order total above 50 bucks to get free shipping.
I don't know where these stand in the Great JVC vs. Taiyo Yuden Food Chain (we might've discussed it here but I'm drawing a blank), but they'd at least be good enough for making copies the fit somewhere above temporary watch-n-toss stuff on landfill-grade media but below the full-on TY/Verb 8x archival media for "keepers."
Note that these are +R, not -R. But I think all the SMS duplicators will accept +R and computer burners, too, right?