I went back and bought one. The clerk printed out both rebate forms, and two extra copies of the sales receipt for me to send with them. I called the toll-free number on the rebate form, asked about using a copy of the UPC for one form, and was told that they'd accept a copy of the UPC for one of the two rebates. I also printed a copy of the Circuit City web page with this product, which clearly lists two $30 rebates, just in case.