The Memorex CD-RW 10 Pk Rewritable Compact Discs offer a capacity of 700MB and a maximum write speed of 4x. These discs come in a sealed pack with each disc protected in a jewel case packaging. Ideal for reusing for recording and rewriting, these compact discs are perfect for storing and accessing data or media files. With the convenience of being rewritable, they provide a reliable storage solution for various uses. The manufacturer warranty for these discs is not mentioned, but they are manufactured in Taiwan.