Haven't used them yet, but ordered 2 packages of Ritek Ridata D/L 2.4X 8.5GB DVDs from www.supermediastore.com for $19.50 per 5 PK or $3.90 each. As an added bonus, you also get 1 Ridata 4X DVD+RW. I have had geat success with their other DVD media.
I hate to be the bearer of bad news on this one but Ritek D/L media IS NOT as good as some of their single layer counterparts (ie Ricoh, G03, G04). The media is "average" quality at best. Hence the reason for the relatively low pricetag.
the ritek DL, unreliable quality, one coaster, $4 down the drain. So think twice