As a full range supplier of digital recording media, Philips is in a unique position to provide top quality products. There CD-R discs have an excellent image in the market place thanks to superb digital sound quality. Suitable for the fastest recording speed. This blank CD from Philips is a 52x CD of the CD-R recordable format - the Philips 52x CD-R is supplied in jewel-case packs of 5 blank CD-R discs. Theses discs are ideal for Audio playback NOTE: These CD-R are designed for use in consumer Hi-Fi recorders only, NOT PC based CD recorders.