These Memorex CD-RW discs have a maximum write speed of 12x and a capacity of 700 MB, allowing you to easily store your important files and documents. The discs are rewritable, making them a cost-effective and convenient option for those who need to regularly update and modify their data. The discs are branded by Memorex and have a total runtime of 80 minutes. This makes them ideal for use in a variety of devices, including computers, DVD players, and CD players. Whether you're backing up important files, creating music or photo discs, or simply need to store data, these CD-RW discs are an excellent choice. Four discs.