This is kind of a warning to buyers who might be thinking of getting blank DVDs from Supermediastore.com. Generally I would consider them the best store online, but over the last few months my purchases have been full of faulty batches. A batch of prodisc were so bad they actually "damaged" my burner, forcing me to purchase a new one. This has also happened to a couple of orders of Ritek -R's (though not as bad as the prodisc). I tested burning with them on friends burners to see if results were the same and they were -freezing & picture break-up during playback. So be careful you guys out there looking to buy supplies anytime soon.