BDXL read only format allows users to read huge amount of data on a single Blu-ray disc, up to 100GB on BD-R(TL) and 128GB on BD-R(QL). Auto Tuning Power technology ensures optimized power to burn a disc with the best quality. Disc Encryption II doubles the security with password-controls and hidden-file function, protecting important user data. Friendly interface with only three simple steps to burn a disc, making the process easier than ever. Vertical and horizontal two-way placement.