TDK 4x 700 MB/80-Minute CD-RW (25-Pack Spindle) Package of 25 CD-RW discs for data storage, audio, and more Stores 700 MB of data, video, or text files or 80 minutes of music Each disc is re-writable (data can be erased and re-recorded) 4x compatible; works on computer burners only Audio recordings play on majority of CD players and recorders