Use of 4x/8x Certified DVD-R discs with certain DVD-R/RW DRIVES (2x or below) and DVD-R/RW VIDEO RECORDERS may cause such DRIVE/RECORDER to become unresponsive. It may cause permanent damage to the DRIVE/RECORDER and to the disc itself. Please contact the manufacture of your DRIVE/RECORDER for compatibility and possibility to obtain free updates to resolve this potential problem. We are not responsible for any damages related to such abuse. (Includes your DRIVE/RECORDER & blank media)