The Memorex CD-RW Platinum 4x Rewritable Speed discs offer 650 MB of capacity and can store 74 minutes of audio. With a maximum write speed of 4x, these CD-RW discs are re writable, making them convenient for use in a variety of applications. Packaged in a jewel case, each unit contains 2 discs, making it ideal for both personal and professional use. These discs are manufactured in Taiwan and come in their original, sealed packaging, ensuring they are brand new and ready to use.