CD-R is a blank disc that customers will burn their own data into the disc using their own burner. Same as CD-ROM, data can be music, video, text, and photo. We offer 12cm regular size, 8cm Mini size, Business card, and Irregular shape. Storage unit: 650MB, 185MB, 50MB respectively. We also provide with natural transparent, Rainbow Color, Printable White and Printable Transparent, which suits your different needs.