Because Netflix lets you keep the DVDs as long as you like with no late fees, Blockbuster said they would do the same. If you kept the DVD longer than 30 days (I think that's what it was, but someone correct me if I'm wrong), they would charge the credit card on file. When you returned it, they pledged that they would refund the cost of the DVD. However, most people never got the money back and had to fight for it.