This a a pack of 10 Rewritable CD''s in Jewel Cases individually packed. Can be re-recorded up to 1,000 times. Fully compatible with all consumer audio cd-rw recorders and with cd rewritable cd players and dvd players. Ensures an immaculate record/playback performance. 80 minutes of recording time... Specification: Rewritable audio CD for use with consumer audio CD-RW recorders. Excellent sound, extremely low error rate. Uncompromising compatibility with any CD-RW recorder, CD player with CD-RW functionality and DVD drive. High speed CD-RW (10 Pack), 700MB, For all high speed CD-RW recorders drives, Over 1000 overwrite cycles, Compatible with recording speeds from 4x to 12x.