CD-RW provides you the flexibility to write and rewrite your CDs ; as much as 1 ;000 times ; while offering compatibility for playback on your CD-R/RW burner ; DVD-ROM ; or your Multi-Read CD-ROM drive. Rewritability is beneficial for applications such as data back-up ; and temporary storage of large files. Sony CD-RW discs provide high quality and long-term durablility for all of your application uses.