These CD-R discs are compatible with a wide range of devices, making them ideal for wide distribution of photos, music or other data. Because they can only be written to once and have superior resistance to deterioration, they're ideal for secure, unalterable archive storage. Each disc in this pack of 25 comes with a plastic slim case for presentation and protection. A choice of five metallic colour finishes allows for further personalisation. 52x speed CD-R (Recordable) with 700MB capacity Recordable: write once, read repeatedly 52x write speed: write a full CD in just 90 seconds Colourful label surface for adding a title with marker pen Secure, highly compatible discs that can last up to 100 years Pack of 25