When handling DVD-R DL please hold the disc along the outer edge or place your finger through the center hub to protect the recording surface from scratches smudges smears fingerprints and other dust particles. never touch the recording surface with your fingers or other objects. when not in use please store it properly in its case and neverplace the recording side face down on a hard surface. Do not attach label protective sheets or apply any coating fluids to the disc. When labeling the disc for identification purposes please use a soft oil-based felt-tip marker on the silver surface. Do not use ballpoint pen hard tip recording performance of the disc. devices for labeling as they may damage the The disc should never be exposed to or humidity avoid any exposure to direct sunlight.