Blu-Ray Recordable Dual Layer Disk features a 50GB memory capacity and a recording speed of 72mbps. High-precision disk structure made to prevent warping during severe changes in temperature and humidity. Offers lower errors while recording and playback because high-precision disk layer provides a level of disc flatness. Hard coating protects against scratches and prevents dust and stains. Features space for massive hard disk backups and large multimedia files. Holds more than 10 standard DVDs. Highly reliable recording material design resists image corruption and deterioration after long storage.