The ability to print all the way to the center hub on these professional grade CD-Rs is what diferentiates it from other CMC Pro - Powered by TY inkjet CD-recordables. Being hub-printable allows a greater display area for your message or artwork and a truly state-of-the-art look to your finished product. Engineered to meet Taiyo Yuden's exact specifications and quality standards, these discs have a white (edge to edge) inkjet top surface, and a blue/green (cyanine) recording surface, with a maximum recording speed of 48x. Taiyo Yuden originally designed them specifically for use with direct surface inkjet printers like those made by Primera, Microboards, Rimage, and Epson. They're packaged in tape wrapped packs of 100 blank discs. This product is not designed to work with thermal printers like the Rimage Everest and it is not recommended for screen printing.