M-disc support to preserve your priceless memories for a millennium BDXL Support - up to 128GB data storage on one disc E-Green saves over 50% of power consumption Doubles data security with password control and encoded file name functionality Friendly interface with three simple steps to burn a disc ASUS BC-12D2HT is a powerful and energy-saving Blu-ray disc drive capable of reading from 12X BD format and writing to 16X DVD?R format. With M-Disc Support, users can store their precious memories for millennium. For data protection, BC-12D2HT integrates password controls and encryption plus encoded file name functionality, ensuring information and documents are extra-safe.