8X, pro grade media perfect for use with labels or with thermal printers such as the Rimage Prism, Power Print, Casio, and Primera Signature Z1. Recommended by most robotics manufacturers due to their consistency. Taiyo Yuden is the only manufacturer that still makes all of their media in Japan. If you are using lesser media and are having problems with failed burns or compatibility, try using what the professionals use. Note: Taiyo Yuden now packages these discs in spindles of 100; 600 per box.