Each disc is rewritable up to 1000 times. Easy to write on for faster labeling. Leave disc open to add data, or close it to make data permanent. CD-RW. Disk Type: CD-RW; Capacity (Music): 80 min; Recordable Format: Rewritable format—may record and re-record data up to 1,000 times.; Capacity Range (Data): 700 MB.