exchanging some blank dvds at Frys?

Picked up some dvd+r 100 pack only problem is they are not on sale any more.

I havn't done any exchanges with blank dvds before. So not sure how it would work. Would I have any problems exchanging them for dvd-r 100 of the same brand, or would I have to pay the difference in price?

if you open it tell them the disc is no good and want another bundle. they would usually just give you another same bundle