These CD-Rs have a capacity of 700MB / 80 Minutes and are supplied in a 20 pack. They are manufactured by HP and have a maximum write speed of 52x. Reduction/Enlargement - 50 to 150% Scan Resolution - Up to 200x200 dpi Grayscale Levels - 64 Standard Paper Handling - 50-sheet input tray, 10-sheet automatic document feeder Custom Media Sizes - 8.5x11 to 8.5x14 Fax Features - Auto-redialing, fax broadcasting (up to 5 locations), auto fax reduction, fax delayed sending, fax forwarding, fax/phone/TAM interface, fax polling, distinctive ring detection, fax telephone mode, remote retrieval, telephone handset, junk barrier, Silent mode, answer mode, redial, loud speaker, volume control and telephone handset Dimensions - Width 14.33 x Depth 12.76 x Height 9.84 (364x324x250mm) Weight - 6.5 pounds (3.0 kg)