Advanced Super-Eutectic Recording (Advanced SERL) technology, a Verbatim patented phase-change recording layer enhances archivability for superior durability and reliability at higher rewrite speeds.Rewritable up to 1,000 times.Read compatible with multi-read CD & DVD drives.Superior overwrite cyclability.Industry standard for performance, compatibility, and the ultimate in reliability. Utilizes an advanced super-eutectic phase change recording layer which ensures durability and reliability while archiving data at higher rewrite speeds. These discs allow you to rewrite data without errors up to 1,000 times.