Read and write Blu-ray discs at 16x with the LG Electronics WH16NS40 16x Internal Super Multi Blue Blu-ray Disc Rewriter that allows you to record up to 128GB of files, photos or documents onto a quad-layer BD-R disc. SATA interface technology allows for easier integration and faster performance while M-DISC provides superior reliability in data storage that is perfect for archiving important data. BDXL Compatible and 16x BD-R Writing Capture all the excitement of Blu-ray with the 16x BD-R writing capability. Plus, now you can store more data on to BDXL discs. Superior data protection with M-DISC Support The M-DISCuses a patent rock-like recording surface instead of organic dye to etch your data onto a disc. The M-DISC has been tested and proven to outlast standard DVDs currently on the market. BDXL Ultimate Capacity Three Layer BDXL-R/BDXL RE discs offer 100GB capacity while quad layer BDXL-R discs boast 128GB storage capacity. You can now write up to 128GBs of data on a single quad layer BDXLdisc which is the equivalent of 27 standard dvds or 5 single layer Blu-ray discs.