If they are 4X rated, they should be RICOHJPNR01-R02. The Ritek G04 is -R. Not a great deal. Office Depot has a better deal from time to time on those: buy one get one free for $60 after using a $20 off $75 coupon.
I've ordered from OfficeDepot online before. Shipping was free and you can exchange defective and return items at your local store. Saves me the trouble of getting up Sunday morning and driving to a store.