With the help of these 25 CD-R discs from Verbatim, you can create backup copies of data or audio CDs, or produce your own data or audio CDs. These discs are designed for long-length writing at a speed of up to 52x. They are not rewritable and offer a maximum capacity of 700 MB (equivalent to 80 minutes of audio), which must be written in one go (Disk-At-Once) or in stages (Track-At-Once).