Can I personalize on these usb/dvd cases if I were to buy 5 pieces or less? Yes you may but only for those made with linen cover materials. A small fee is applicable for this request. Can I customize the colours/covering material for single purchases? No, we cannot customize the colours/covering materials for single purchases. This is only available for bulk purchases. Can I place 2 dvds on a single stud dvd case? No, you cannot as the stud is only made to hold a single dvd. What is the minimum order for bulk purchase? The minimum order quantity for bulk order is 10 units for linen usb boxes and 15 units for others.