TDK 12x 650 MB/74-Minute CD-R Spindle (100 Discs) Package of 100 CD-R discs for storing computer files, music, or other information Stores 650 MB of information or 74 minutes of music Each disc is write-once (can't be erased or re-recorded) 12x compatible; works on computer burners only Audio recordings play on majority of CD players and recorders