Pioneer 6x BDR-XU03 Slim Portable Blu-ray Burner Bundle with 1 Pack M-DISC BD - Supports USB 3.0, BDXL, BD, DVD, and CD Media (Silver, Retail Box) Pioneer external burner bundle includes a 1 pack M-DISC BD M-DISC uses a non-volatile rock-like data layer, which is more durable than reflective organic dye-based layers found in conventional DVDs. Writing onto M-DISCs using an M-DISC supported drive allows permanent data storage lasting up to 1000 years. Operating requirements: Mac OS X (10.6 or higher), Windows (8, 7, Vista, or XP SP3) Maximum write speed of 12x and read speed of 8x for BD-R. Maximum write and read speeds of 16x for DVD-R. Maximum write and read speeds of 40x for CD-R. Maximum BD Dual Layer (DL) burn speed at 6x and read speed at 6x. Maximum DVD Dual Layer (DL) burn speed at 4x and read speed at 8x Buffer size of 4MB and USB 3.0/2.0 Interface