Smartbuy Features: High Speed Recording -- Smartbuy Phthalocyanine dye provides reliable and stable high-speed recording. High compatibility -- Smartbuy CD-R can be recorded on most computer CD writers and can be played back on most CD/DVD-ROM and players. High Durability -- The advanced Phthalocyanine dye guarantees Smartbuy CD-R's high durability. Precautions: 1. Avoid fingerprints, dust and other soiling on the disc. The disc can be cleaned with a soft, lint-free cloth. Don't use any solvents or protective liquid. 2. Do not hit the edge of the disc. 3. Protect the disc from excessive heat, moisture and direct sunlight. 4. Please use soft felt-tip pens to label the disc.