The only decent media I've found for under $20/100 lately is
Office Depot's sale last week (pre-TG/pre-BF) on RITEKF1 TDK-branded discs for $17 per spindle. It's good dupe media, not fit for mastering/archives, however.
Verbatim has been steady at $20-25 on
Amazon, no tax and free shipping. That's your best bet for good media. Links at
http://www.digitalfaq.com/reviews/dvd-media.htm and prices are tracked a few times per week, updated to reflect changes.
Playo fakes several codes.